WPForms
98The best WordPress contact form plugin. Drag & Drop form builder to create beautiful contact forms, paymen...
Free
5M+ installs 4.8★ (14,369)
PVB Contact Form 7 Calculator
Lets you easily turn any Contact Form 7 form into a quote or price estimate calculator.
The facts
- Rating
- 5★ from 10
- Active installs
- 600+
- Price
- Free
- Last updated
- 20 May 2026
- Added
- Mar 2018
- Requires WP
- 6.5
- Tested up to
- WP 7.0.4
- Requires PHP
- 7.4
- Downloads
- 25,757
Our analysis
AI-assistedPVB Contact Form 7 Calculator is a WordPress plugin that transforms any Contact Form 7 form into a functional calculator. It allows for advanced calculations based on user input, making it suitable for various applications like weight, calorie, and quote calculators.
The plugin supports server-side calculations, meaning users do not see the underlying formulas. It offers flexibility in how calculations are triggered, either on button clicks or form submissions, and ensures accurate floating-point math to avoid common rounding errors.
Best for: This plugin is suitable for websites that require interactive calculators within forms, such as service providers or educational sites.
What it does well
- ✓Turns Contact Form 7 forms into calculators
- ✓Supports custom formulas based on user input
- ✓Offers server-side calculations for privacy
- ✓Allows calculations to be triggered by various events
- ✓Handles floating-point math accurately
Where it falls short
- •Limited information on specific use cases or examples
Verdict
PVB Contact Form 7 Calculator provides a straightforward solution for integrating calculators into forms, making it a practical choice for users needing such functionality.
From the developer
pbosakov's own description of PVB Contact Form 7 Calculator, lightly tidied.
Overview
With PVB Contact Form 7 Calculator, you can easily turn any Contact Form 7 form into a calculator. Calculated fields are based on user input and selections in other parts of the form. The plugin can be used for creating various types of calculators, such as an ideal weight calculator, calorie calculator, quote calculator for hotel booking, car rental quote calculator, mortgage calculator, tax calculator, finance calculators, date calculator, etc.
Features
- Advanced calculations – set your custom formula based on user input, for example:
cost_per_day * days * (1 + (tax_percentage / 100)) - Hide calculated fields – they can be visible to the user or not. Your choice!
- Server-side calculation – you don’t have to disclose your top secret formula! Calculations are performed behind the scenes, on the server.
- Calculate on button click – you can let your users trigger the calculations without submitting the form.
- Calculate on submit – values are always calculated on submit, so you can use them in your notification emails.
- Calculate on other events – you can also trigger calculations from another script at any time!
- Correct floating-point math – PVB Contact Form 7 Calculator handles decimal floating-point math properly, unlike many online calculators that introduce rounding errors when converting to binary and back, yielding incorrect results (such as 0.6 + 0.3 = 0.8999).
Video tutorial
Tagged as
purpose
Contact & Custom Forms
platform
Contact Form 7
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