The best WordPress calculator plugins upgrade your website instantly. And we've created a list of the best calculator plugins for WordPress to use today.
Approximate read time: 7.5 minutes
Custom calculators shouldn't require a web development degree.
Luckily, tons of WordPress calculator plugins save time and effort so that you can focus on more important things. But choosing the right one isn't as quick (or effortless).
So that's why I wrote this post. I tried out the ten best calculator plugins for WordPress and their features, so you didn't have to. And you'll find everything I found below so you can choose what's right for you.
So, let's get started.
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The best WordPress calculator plugins
Formidable Forms
WPForms
Calculated Fields Form
Forminator
Responsive Mortgage Calculator
Product Options and Price Calculation Formulas for WooCommerce
Cost Calculator Builder
Fluent Forms
Measurement Price Calculator
YITH WooCommerce Cost of Goods
1. Formidable Forms
Rating: 4.7 stars (1,135+ reviews) | 300,000+ active installations
Start Calculating with Formidable!
Formidable Forms is way more than just the best WordPress form plugin — it's a super powerful calculator builder.
If you dread coding calculators from scratch (let's be honest, who doesn't?), Formidable is your solution.
Its intuitive drag and drop form builder helps you create a custom calculator form from scratch. Need a mortgage calculator, a fitness tracker, a car loan calculator, or even something that adjusts prices based on location? Formidable does all that and more.
And the best part? It comes with pre-built calculator form templates, so you can have a complex calculator up and running in seconds.
Formidable's flexibility makes it ideal for any calculator need: online stores, charities, real estate websites — you name it. Plus, it integrates with tons of services like Google Sheets and has a PDF add-on, so your calculator data works for you in all sorts of ways.
Top features:
Drag and drop calculator builder
Calculator handles complex calculations
Many calculator templates ready to use
Multiple integrations allow you to connect with other services
Pricing: Free and premium (from $79/year)
Get Started with Formidable!
2. WPForms
Rating: 4.9 stars (13,765+ reviews) | 5+ million active installations
WPForms is another powerhouse in the form-building industry. And it doubles as a calculator plugin for simple calculations.
Adding quote forms, tip calculators, and other basic math-based calculations is easy. And creating calculators is just as simple as creating a form. Its drag and drop form builder is great for all technical levels, and there isn't a huge learning curve.
It's a great option for those who want simplicity and some extra integrations to work with their existing workflow.
Top features:
Beginner-friendly form builder
Basic calculators are great for many situations
Form templates available in premium version
Pricing: WPForms has a free and premium version. Premium plans start at $99/year.
3. Calculated Fields Form
Rating: 4.9 stars (900+ reviews) | 50,000+ active installations
Calculated Fields Form is your go-to plugin for complex, logic-driven calculations on your WordPress forms.
It allows you to create formulas to update totals dynamically, do conditional calculations, and perform high-level math functions. So, if you have calculations that need to be flexible based on user input, Calculated Fields Form is a great option. And you'll get some free templates from the start, from a lease calculator to date calculations.
You need more technical knowledge compared to other plugins on this list. But its power and flexibility are tough to match.
Top features:
Advanced math function for complex projects
Build multi-step calculators with logic-based calculations
Update results based on user input
Pricing: Free and premium (from €49.99/site)
Learn more: Looking for a Calculated Fields Form Alternative?
4. Forminator
Rating: 4.8 stars (1,650+ reviews) | 500,000+ active installations
Forminator is another form builder disguised as a calculator plugin.
Its visual form builder is flexible and helps you create all types of calculators. From payment forms to adding totals or creating scored quizzes on the fly.
Forminator handles it all.
And it has a great form styler, so your calculators match your website's theme.
Top features:
Design calculators to match your website's style
Build payment forms and interactive quizzes
Connect with popular payment services (like Stripe and PayPal)
Pricing: Free and premium (from $7.50/month)
5. Responsive Mortgage Calculator
Rating: 4.6 stars (20+ reviews) | 10,000+ active installations
Responsive Mortgage Calculator is best for real estate websites if you can't tell by its name.
It's a user-friendly plugin and looks great on any device. Plus, it has many features that fit real estate, such as down payment calculations, amortization schedules, and custom interest rates.
While it won't fit every calculator situation, its focus on mortgage calculator forms makes it an incredibly powerful tool for home-buying professionals.
Also, it uses a shortcode instead of a drag and drop form builder or WordPress block display.
Top features:
Mobile-friendly design works great on all devices
Easily calculates mortgage payments, amortization, and more
Customizable interest rates and other real estate variables
Pricing: Responsive Mortgage Calculator is free.
6. Product Options and Price Calculation Formulas for WooCommerce
Rating: 4.6 stars (70+ reviews) | 2,000+ Active Installations
Product Options and Price Calculation Formulas for WooCommerce is the perfect plugin for WooCommerce Users. (And it's an incredibly long name for a plugin!)
It is great for complex product pricing and calculating totals on the go. Plus you can add custom formulas, conditional logic, and extra product options that change prices based on user choices.
This is perfect for stores selling custom products, upselling, or needing calculations with changing sizes, quantities, etc.
And if you're already using WooCommerce, it's an easy integration as a cost estimator.
Top features:
Create complex pricing rules for WooCommerce products
Add custom field options for pricing
Use conditional logic to show/hide options
Pricing: Free and premium (from $49.99 per year)
7. Cost Calculator Builder
Rating: 4.3 stars (240+ reviews) | 30,000+ Active Installations
Cost Calculator Builder is a good mix between a calculator plugin and a form builder.
It has an excellent drag and drop calculator builder so that you can create calculators quickly. And if you're not comfortable with coding or complicated formulas, Cost Calculator Builder is here to bridge the gap with its visual editor.
Focusing more on the design sign of things, Cost Calculator Builder lacks some powerful calculator features that plugins, like Calculated Fields Form or Formidable Forms, have.
Top features:
Simple drag and drop calculator builder
Easily match your calculators to the website theme
Collect user info and create estimates or quotes
Pricing: Free and premium (from $149 per year)
8. Fluent Forms
Rating: 4.8 stars (530+ reviews) | 400,000 active installations
Fluent Forms is the last form builder on this list with calculator functions.
It's a great way to add complex calculations to your forms. Whether you're creating estimate forms, BMI calculators, or other basic math forms — Fluent Forms has you covered.
So, Fluent Forms isn't a bad option if you need simple forms and a price calculator builder.
Top features:
Simple form builder
Handles basic calculations and conditional logic
Integrates with common payment services
Pricing:
9. Measurement Price Calculator
Measurement Price Calculator is a WooCommerce-specific plugin.
And it's great for stores that sell products by dimension, weight, and volume. So, stores that sell flooring, fabric, or custom-sized products will love the calculations this plugin gives.
It makes things easier for owners and customers by instantly calculating costs based on measurements, which saves time.
So, if you have a made-to-order product store, this is a great choice.
Top features:
Automated pricing calculations based on dimension, weight, or volume
Perfect for WooCommerce stores
Instant, accurate pricing is fast and reduces errors
Pricing:
10. YITH WooCommerce Cost of Goods
YITH WooCommerce Cost of Goods isn't a normal calculator plugin. But it is an essential tool for WooCommerce store owners who want accurate profitability tracking.
This plugin lets you set each product's cost and see real-time profit margins on sales and overall inventory.
If you're serious about running a profitable WooCommerce store, this is the plugin for you.
Top features:
Track the cost of each product and calculate profit margins
Analyze the profitability of each product, category, or store-wide
Pricing:
Ready to pick up the best online calculator WordPress plugin?
Whew, that adds up to a lot of choices! But I hope this roundup makes it easier for you to create the best online calculator for your website.
So, are you ready to watch your web traffic multiply? Get started by picking up Formidable Forms today!
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