Calculated Fields Form – AI Form Builder for WordPress – Contact, Payment, Quote, Quiz & More vs Kali Forms

Calculated Fields Form is a full-featured WordPress form builder plugin. It lets you create any type of form — from simple contact forms to complex multi-step booking systems, quote generators, order forms, and payment forms — without writing a single line of code. Its standout capability is real-time dynamic calculations: form fields can automatically compute results (totals, prices, dates, distances, scores) based on values entered by the user. This makes it the ideal choice whenever a form needs to respond intelligently to user input. Is Calculated Fields Form only for forms with calculations? No. Despite its name, Calculated Fields Form is a complete, general-purpose WordPress form builder suitable for any use case. The “calculated fields” refer to an advanced feature the plugin offers on top of all standard form capabilities. You can use it to build: Contact forms — simple name, email, and message forms Booking and reservation forms — with date pickers and availability logic Quote and estimate forms — with automatic price calculation Order forms — with dynamic product pricing Payment forms — integrated with PayPal, Stripe, and many other gateways Registration and sign-up forms — for events, services, or user accounts Survey and quiz forms — with conditional logic and scoring Lead generation forms — connected to Mailchimp, HubSpot, Salesforce, and more Mortgage and loan calculators — with financial operation modules Shipping and logistics forms — with distance and travel time calculations Why choose Calculated Fields Form over other WordPress form plugins? No recurring fees — all commercial versions are a one-time purchase with lifetime updates AI-powered form builder — generate forms and formulas using an integrated AI assistant AI-powered entries filter — filter form submissions using natural language with integrated AI models 4.9/5 rating with over 960 verified reviews on WordPress.org 40,000+ active installations Compatible with all major page builders — Gutenberg, Elementor, Divi, Beaver Builder, WPBakery, SiteOrigin Extensive add-on ecosystem — payment gateways, CRM integrations, PDF generation, e-signatures, and more Real-time calculations — a capability that most other form plugins lack or offer only in expensive tiers Actively maintained — updated regularly with new features and compatibility fixes At the moment, the plugin supports multiple AI providers, including Anthropic Claude, OpenAI, Gemini, MiniMax, DeepSeek, Kimi, as well as all AI connectors supported by the new WordPress 7.x Connectors module. The visual drag-and-drop form builder requires no developer knowledge. Available controls include: text fields, numbers, currency, date/time pickers, slider controls, email, radio buttons, checkboxes, container fields, multi-page controls, QR code readers, voice recording fields, calculated fields, and many others. All forms are fully mobile responsive. Features Core form builder features: Visual drag-and-drop form builder with an intuitive and interactive interface. General-purpose form controls: radio buttons, checkboxes, dropdown lists, date/time pickers, sliders, numeric fields, currency fields, email fields, text areas, and more. Calculated fields that automatically compute values based on other form fields. Insert as many calculated fields as needed. Advanced formula editor with syntax highlighting and real-time error detection. Conditional logic (dependency rules) to show, hide, enable, or disable fields based on user input — ideal for building guided wizards. Multi-page forms using page break controls between field groups. Field grouping inside container controls (Div, Fieldset, and Popups). Multi-column layout support for organized, professional-looking forms. Dozens of predefined form templates to use as starting points. Multiple design themes and templates. Email notifications sent to the site owner when a form is submitted. Form version history to recover previous versions. Form duplication to reuse existing work. Troubleshooting and optimization tools. Option to exclude forms from search indexing for improved site speed. Supported calculation types: Financial calculations: totals, taxes, discounts, interest rates, loan amortization. Date and time calculations: differences between dates, age calculations, booking duration. Mathematical operations: arithmetic, percentages, rounding, trigonometry, and complex functions. Text processing: string manipulation, concatenation, and formatting. Distance calculations: compute distances and travel times between locations using Google Maps. Chart generation: create charts dynamically from form data using Chart.js. External service calls: retrieve real-time data from third-party APIs within form equations. Page builder integrations: Calculated Fields Form integrates natively with all major WordPress page builders: Classic WordPress Editor Gutenberg (Block Editor) Elementor Page Builder by SiteOrigin Beaver Builder WPBakery Page Builder DIVI Builder For any other editor, use the shortcode to insert forms anywhere: [CP_CALCULATED_FIELDS_ID id="1"] Other features: Duplicate any form to reuse and adapt previous work. Built-in troubleshooting and performance optimization area. Disable forms from search indexing to improve website speed. Form version control to recover previous versions. Free vs. Commercial Versions The free version includes the complete visual form builder, notification emails to the site owner, basic calculation operations, conditional logic, design customization, multi-column layout, submission storage on the website for review, and Math CAPTCHA for spam protection. The commercial versions (Professional, Developer, and Platinum) add Math and Classic CAPTCHA options alongside the free Math CAPTCHA, payment gateway integration, confirmation emails to users, advanced data source controls, financial and distance operation modules, chart generation, CRM integrations, PDF generation, e-signatures, and more. All commercial versions are available as a one-time purchase with lifetime access to plugin updates. Visit https://cff.dwbooster.com/download for details. Professional version features: All features of the free version. Send confirmation emails to users with their submitted data. PayPal integration and Stripe integration — dynamically compute the charge amount using a calculated field. SCA (Strong Customer Authentication) compatible with PSD2 (EU Payment Services Directive). Import and export forms between WordPress sites. Form protection: Math and Classic CAPTCHA, WordPress nonces, and honeypot fields. “Thank You” page with a summary of the form submission. Dashboard widget showing the last week’s form submissions. Form caching to increase rendering speed. Export submissions to CSV for use in Excel, OpenOffice, LibreOffice, or any spreadsheet tool. Developer version features: All features of the free and Professional versions. Advanced controls connected to external data sources: databases, CSV files, WordPress posts, taxonomies, user data, and JSON objects. Financial operations module: interest, amortization, and other financial calculations. Date and time operations module: advanced date arithmetic and formatting. Distance and travel time module: powered by Google Maps. Chart.js operations module: generate dynamic charts from form data. Script to save form data to an external database. Add-ons included in the Developer version: Server-Side Equations add-on: Run equations on the server for better performance and security. Verification Code add-on: Email and phone verification with code input before form submission. WooCommerce add-on: Link forms to WooCommerce products to calculate prices, weight, and dimensions. SalesForce add-on: Sync form data with your Salesforce account. WebHooks add-on: Send form data to Webhook URLs; connect with Zapier, IFTTT, and more. User Permissions add-on: Restrict form access and let users manage their own submissions. User Registration Form add-on: Create user sign-up and registration forms. Platinum version features: All features of the free, Professional, and Developer versions. Extending features add-ons: CSV Generator add-on: Export form data to CSV files and attach them to notification emails. PDF Generator add-on: Create PDF documents from submitted form data and include them in emails. Signature add-on: Add e-signature fields — users can sign using a mouse or touchscreen. Unique Fields Values add-on: Ensure submitted values have not been used in previous submissions. iCal add-on: Send iCal attachments in emails for importing events into Google Calendar, Outlook, and more. Upload Files add-on: Save uploaded files to the WordPress media library and support additional file types. Payment gateway add-ons: PayPal Pro add-on: Accept credit card payments directly on your site without redirecting to PayPal. PayPal Checkout add-on: Integrates PayPal Checkout with support for additional payment methods. Revolut add-on: Accept payments through Revolut. Authorize.Net add-on: Accept payments through Authorize.Net. Stripe add-on: Accept payments using the Stripe payment gateway. Stripe Checkout add-on: Use Stripe Checkout for secure, form-based payments. Skrill Payments Integration add-on: Integrate with Skrill Moneybookers for payment processing. TargetPay (iDeal) add-on: Support payments via iDeal through TargetPay. Mollie (iDeal) add-on: Accept iDeal payments using Mollie. RedSys / Servired / Sermepa add-on: Enable credit card payments through Spanish bank gateways. PayTM add-on: Accept payments via cards, net banking, wallets, and EMI through PayTM. SagePay add-on: Accept secure payments using the SagePay gateway. Sage Payment add-on: Support SSL-based credit card and e-check payments via Sage. eWay add-on: Integrate with eWay for payments in Australia, New Zealand, Singapore, Hong Kong, and Malaysia. Payrexx complementary plugin: Connect forms to the Payrexx payment platform. Square Checkout complementary plugin: Accept all major cards worldwide using Square. Third-party service integrations: Google Places add-on: Enable address autocomplete using the Google Places API. Autocomplete Places add-on: Add address autocompletion via the Photon API. Google Analytics add-on: Track user actions in forms and report to Google Analytics. Dropbox Integration add-on: Move uploaded files automatically to your Dropbox account. WebMerge add-on: Generate PDFs or Office documents via FormStack using submitted form data. Sendinblue Contact add-on: Add or update contacts in Sendinblue from form submissions. PrintFriendly add-on: Create PDF files with PrintFriendly and attach them to notification emails. Mailchimp add-on: Add new subscribers to Mailchimp lists on form submission. Mautic add-on: Add or update contacts in Mautic. HubSpot add-on: Send collected form data to HubSpot CRM contacts. Twilio add-on: Send SMS messages automatically on form submission. ip2location add-on: Detect user location using the ip2location database. Third-party plugin integrations: WooCommerce add-on: Connect forms with WooCommerce to dynamically calculate product prices, sizes, and weight. Easy Digital Downloads add-on: Integrate with Easy Digital Downloads to dynamically calculate product prices. Emma add-on: Add new contacts to Emma email marketing lists. MailPoet add-on: Subscribe users to MailPoet (v2 and v3) mailing lists. AffiliateWP add-on: Connect forms with AffiliateWP for affiliate tracking. The Events Calendar add-on: Create events, venues, and more using submitted form data.= Equation and formula format for calculated fields = Calculated fields support any valid JavaScript expression or function. Below are examples of common formula patterns: Simple arithmetic: fieldname1 + fieldname2 fieldname1 * fieldname2 fieldname1 / fieldname2 fieldname1 - fieldname2 Multiple fields with grouping: fieldname1 * (fieldname2 + fieldname3) Rounding to two decimal places: PREC(fieldname2 / fieldname3, 2) Conditional logic inside a formula: (function () { if (100 < fieldname3) return fieldname1 + fieldname2; if (fieldname3 <= 100) return fieldname1 * fieldname2; })(); Complex formulas using the full function format: (function () { var result = 0; /* Your code here */ return result; })(); Operations and operators available in formulas One of Calculated Fields Form’s key strengths is that any valid JavaScript code can be used in formulas. The plugin also provides a wide library of built-in operations: Mathematical Operations and Operators Conditional Operations Date and Time Operations Health-Related Operations Energy-Related Operations Field Handling Operations Operations for Interacting with External Services Operations for Handling URLs and Query Strings Additional modules available in Developer and Platinum versions: Financial Operations Distance and Travel Time Operations Chart Generation Operations Passing external variables to form equations Use the [CP_CALCULATED_FIELDS_VAR] shortcode to create JavaScript variables from GET or POST parameters, SESSION variables, or COOKIES, and reference them inside form equations: [CP_CALCULATED_FIELDS_VAR name="varname"] Access the variable in a formula using: fieldname1 * cff_var.varname Full documentation: Variable Shortcode Reference Complementary Plugins Odoo Contacts, Google Sheets Integration, WhatsApp Button, Xero Contacts, Zoho Leads, Zoom.us Meetings Integration, Data Collector, WooCommerce Products and Variations Prices, Multilanguage Forms, Progress Bar, Upload Files Path, QR Code Generator, Database Queries, Draft Form Data, Email Validator, Reminder Emails, Rich Text Editor, Submissions Removal, Use Limit, Fields Synchronization, RegExp Validation, Autocomplete Fields, Measurement Units Converter, Create Posts, Currency Exchange, hCaptcha, and growing.

WORDPRESS CONTACT FORM PLUGIN Meet Kali Forms – the powerful & user-friendly WordPress contact form plugin. Start from scratch with our easy-to-use drag & drop builder or build a form with our predesigned templates in just a few clicks… Kali Forms makes it easy to create powerful contact forms, payment forms, feedback forms and more for your website without the hassle. Easy-to-use Form Templates Building forms can take time, which is something we all never have enough of. So to make the form creation experience even easier and more efficient, Kali Forms comes with built-in form templates which you can use if you don’t want to start from scratch! Standard contact form Instantly create a contact form that allows your website visitors and potential customers to get in touch with you. Employee information form Easily use and modify the Kali Forms employee information form template which you can use to collect vital information during the employee onboarding process. These 13 additional templates are only available in Kali Forms Pro: Job application form Easily create a form that allows candidates to apply for a job with this template. Appointment form Make it easy for potential customers and clients to book a call or schedule a meeting with you without linking to external services. Customer feedback form Use the customer feedback form template to start collecting valuable feedback and suggestions from your customers. Art contest Thinking of running an art contest or competition but don’t know where to start? With the Kali Forms Art Contest form template, easily start collecting entries in just a few clicks. Gaming tournament registration form Do you run a gaming website and want to host a gaming tournament that all your followers can join? If so, easily create a gaming tournament registration form by importing this predesigned template. Kali Forms makes it easy to plan and host gaming tournaments that people love. GDPR-Friendly contact form Kali Forms makes it extremely easy to create GDPR-friendly contact forms with a confirmation checkbox that allows you to ensure that people submitting your contact form agree with the terms and conditions or privacy policy of your website. Running calculator form Help users that like to go on outdoor runs calculate their pace, time and distance. The calculations are easily handled through our built-in Calculator. Donation form A simple form that will allow you to accept donations through PayPal. Request quote form An example form for requesting a quote for gardening services. Reservation form Use this form if you want to provide users with an example of a hotel reservation form. Gym Membership Application form Staying in shape is very important, allow users to apply to a gym memberhsip at your establishment using this example form. Simple booking form Allow users to book a venue through this form. Previously selected dates will be automatically disabled in the calendar selection in order to avoid overlapping bookings. Simple booking form with payment Provide users with a basic form that will allow them to book a room at your hotel and also accept payments online through PayPal. Learn more about Kali Forms Pro… Performance-Focused WordPress Form Plugin We built the Kali Forms WordPress form plugin from the ground up with performance in mind. Kali Forms is built on React using modern development practices. All forms are 100% mobile-responsive. Contact forms created with Kali Forms are fully mobile responsive, so your contact forms will look great on mobile, tablet, laptop and desktop devices. The Days of Form Spam Are Over We know much of a problem form spam is which is why Kali Forms is designed to use a combination of Google’s powerful reCAPTCHA and spam honeypot system so you never have to waste your time dealing with unsolicited submissions ever again. Easy doesn’t need to mean basic forms This feature is only available in Kali Forms Pro! Kali Forms was designed to be user-friendly but being easy-to-use doesn’t need to mean that you should only be able to create simple, basic forms. With Kali Forms Pro, you can easily create powerful forms that use conditional logic, multi-page forms, and make use of our partial entries and submisison handling add-on. Learn More about Kali Forms Pro… External Services This plugin connects to several third-party services to provide its functionality. Below is a complete list of external services used, what data is sent, when it is sent, and links to their terms of service and privacy policies. Spam Protection Services Google reCAPTCHA – Service: Google reCAPTCHA is used to verify that form submissions are made by humans and not automated bots. – What data is sent: When a form is submitted with reCAPTCHA enabled, the plugin sends the reCAPTCHA response token and your site’s secret key to Google’s verification service. – When: Data is sent only when a form submission includes reCAPTCHA verification. – Terms of Service: https://policies.google.com/terms – Privacy Policy: https://policies.google.com/privacy Cloudflare Turnstile – Service: Cloudflare Turnstile is an alternative spam protection service used to verify that form submissions are made by humans and not automated bots. – What data is sent: When a form is submitted with Turnstile enabled, the plugin sends the Turnstile response token and your site’s secret key to Cloudflare’s verification service. – When: Data is sent only when a form submission includes Turnstile verification. – Terms of Service: https://www.cloudflare.com/terms/ – Privacy Policy: https://www.cloudflare.com/privacy/ Akismet – Service: Akismet is used to check form submissions for spam content when enabled. – What data is sent: When Akismet is enabled and a form is submitted, the plugin sends the following data to Akismet: website URL, user IP address, user agent, referrer URL, form field values (name, email, message content), and comment type. – When: Data is sent only when Akismet is enabled and a form is submitted. – Terms of Service: https://akismet.com/tos/ – Privacy Policy: https://automattic.com/privacy/ Email Delivery Services (Optional) These services are only used if you configure them in the plugin’s email settings. If you use the default WordPress email system, these services are not contacted. Postmark – Service: Postmark is an email delivery service used to send form notification emails when configured. – What data is sent: Email content including recipient addresses (To, Cc, Bcc), sender information, subject, HTML/text body, reply-to addresses, and email attachments (if any). – When: Data is sent only when Postmark is configured as the email provider and a form notification email is sent. – Terms of Service: https://postmarkapp.com/terms – Privacy Policy: https://postmarkapp.com/privacy SMTP.com – Service: SMTP.com is an email delivery service used to send form notification emails when configured. – What data is sent: Email content including recipient addresses (To, Cc, Bcc), sender information, subject, HTML/text body, reply-to addresses, and email attachments (if any). – When: Data is sent only when SMTP.com is configured as the email provider and a form notification email is sent. – Terms of Service: https://www.smtp.com/terms-of-service/ – Privacy Policy: https://www.smtp.com/privacy-policy/ Sendinblue (Brevo) – Service: Sendinblue (now Brevo) is an email delivery service used to send form notification emails when configured. – What data is sent: Email content including recipient addresses (To, Cc, Bcc), sender information, subject, HTML/text body, reply-to addresses, and email attachments (if any). – When: Data is sent only when Sendinblue is configured as the email provider and a form notification email is sent. – Terms of Service: https://www.brevo.com/legal/termsofuse/ – Privacy Policy: https://www.brevo.com/legal/privacypolicy/ Mailgun – Service: Mailgun is an email delivery service used to send form notification emails when configured. – What data is sent: Email content including recipient addresses (To, Cc, Bcc), sender information, subject, HTML/text body, reply-to addresses, and email attachments (if any). – When: Data is sent only when Mailgun is configured as the email provider and a form notification email is sent. – Terms of Service: https://www.mailgun.com/terms/ – Privacy Policy: https://www.mailgun.com/privacy-policy/ Payment Processing (Optional) PayPal – Service: PayPal SDK is loaded to enable payment processing in forms when PayPal payment fields are used. – What data is sent: The PayPal JavaScript SDK is loaded from PayPal’s servers. Payment data is handled directly between the user’s browser and PayPal – the plugin does not send payment information to PayPal servers. – When: The PayPal SDK script is loaded only when a form contains PayPal payment fields and is displayed on a page. – Terms of Service: https://www.paypal.com/us/webapps/mpp/ua/useragreement-full – Privacy Policy: https://www.paypal.com/us/webapps/mpp/ua/privacy-full Plugin Services (Kali Forms) Kali Forms Extensions API – Service: This service provides a list of available plugin extensions and add-ons. – What data is sent: No user data is sent. The plugin requests a list of available extensions. – When: Data is requested when you visit the Extensions page in the WordPress admin panel. Results are cached for 2 days. – Terms of Service: https://kaliforms.com/terms-of-service/ – Privacy Policy: https://kaliforms.com/privacy-policy/ Kali Forms Uninstall Feedback API – Service: This service collects feedback when you deactivate the plugin. – What data is sent: When you deactivate the plugin, you may optionally provide feedback including: deactivation reason, improvement suggestions, and optionally your email address (if you choose not to submit anonymously). – When: Data is sent only when you explicitly choose to submit feedback during plugin deactivation. You can choose to submit anonymously. – Terms of Service: https://kaliforms.com/terms-of-service/ – Privacy Policy: https://kaliforms.com/privacy-policy/ Kali Forms Blog Posts API – Service: This service provides blog posts to display in the WordPress dashboard widget. – What data is sent: No user data is sent. The plugin requests blog posts tagged for the dashboard widget. – When: Data is requested when the dashboard widget is displayed. Results are cached for 7 days. – Terms of Service: https://kaliforms.com/terms-of-service/ – Privacy Policy: https://kaliforms.com/privacy-policy/ JavaScript Libraries (Bundled) html2canvas – Service: html2canvas is a JavaScript library bundled within the plugin’s vendor.js file. The reference to html2canvas found in the compiled code is a comment banner indicating the library’s origin and version, not a remote service call. – What data is sent: No data is sent. html2canvas is included as a bundled dependency in the public/assets/backend/js/vendor.js file and operates entirely client-side without making external network requests. – When: The library is loaded when the form entries page is accessed in the WordPress admin panel. It is used for client-side image rendering functionality. – Source: The library is bundled from npm package html2canvas and included in the plugin’s vendor bundle. No external calls are made. jsPDF (PDFObject CDN Reference) – Service: jsPDF is a JavaScript library bundled within the plugin’s vendor.js file for PDF generation. The library includes an optional feature that can load PDFObject from a CDN, but this feature is only used if the “pdfobjectnewwindow” output type is explicitly called. – What data is sent: The jsPDF library includes a hardcoded fallback URL to Cloudflare’s CDN (https://cdnjs.cloudflare.com/ajax/libs/pdfobject/2.1.1/pdfobject.min.js) that is only used when the optional “pdfobjectnewwindow” output method is called. This is a feature of the jsPDF library itself, not a requirement of this plugin. – When: The CDN URL is only accessed if code explicitly uses jsPDF’s output("pdfobjectnewwindow") method. The plugin does not use this output method by default, so the CDN is not accessed during normal plugin operation. – Source: The library is bundled from npm package jspdf and included in the plugin’s vendor bundle. The CDN reference is part of the jsPDF library’s optional functionality. – Note: To avoid any external CDN calls, do not use the pdfobjectnewwindow output type. The plugin uses other jsPDF output methods that do not require external resources. Important Note: Kali Forms does not send any data without user action or consent to external services, nor do we collect sensitive information from the requests. Email delivery services and payment processing are only used when explicitly configured by the site administrator. JavaScript libraries are bundled within the plugin and operate client-side. The only external CDN reference is an optional feature of the bundled jsPDF library that is not used by default. Development Source Code The source code for Kali Forms is available in the plugin directory. The plugin includes a package.json file that documents all build dependencies and development tools used to compile the plugin’s JavaScript and CSS assets. Build Process Kali Forms uses modern web development tools to build its frontend assets: Webpack: Module bundler for JavaScript and CSS Babel: JavaScript compiler for modern ES6+ syntax Sass/SCSS: CSS preprocessor PostCSS: CSS post-processing with autoprefixer The plugin’s JavaScript source code is located in the resources/assets/js/ directory and is compiled into the public/assets/ directory. The build process does not use code obfuscation or minification that makes code unreadable – only standard webpack production optimizations are applied. Vendor Files The plugin includes bundled vendor libraries in public/assets/backend/js/vendor.js and public/assets/frontend/js/vendor.js. These files contain third-party JavaScript libraries that are compiled and bundled during the build process. A complete list of all vendor dependencies, including their versions and licenses, can be found in the package.json file included with the plugin. The dependencies are categorized as: – dependencies: Runtime libraries required for the plugin to function – devDependencies: Build tools and development dependencies used only during compilation All vendor libraries are bundled locally within the plugin and do not make external network requests during normal operation. The source code for these libraries is available through their respective npm packages, and the bundled versions are included in the plugin distribution. Any CDN references found in vendor files are either: 1. Comment banners or attribution notices (like library name and version information) 2. Optional features within bundled libraries that are not used by the plugin (such as optional output methods that require external resources) For specific examples of how bundled libraries are used and whether they make external calls, see the “JavaScript Libraries (Bundled)” section above. Building from Source To build the plugin from source: Ensure you have Node.js and npm installed Navigate to the plugin directory Run npm install to install dependencies Run npm run prod to build all assets for production, or use specific build commands: npm run prod-frontend – Build frontend form assets npm run prod-components – Build form builder components npm run prod-general – Build general admin assets npm run prod-block – Build Gutenberg block assets npm run prod-form-entries – Build form entries page assets npm run prod-emails – Build email settings assets For development with watch mode, use npm run start or the specific start-* commands. Dependencies All build dependencies …