7 Best WordPress Calculator Plugins in 2023

Looking for the best WordPress calculator plugins? We've done the work for you! Here's our list of the top calculator plugins for your WordPress site.

Calculators aren't just for math class.

They are powerful online tools that help collect leads, a critical part of your email marketing strategy. And having the right online calculator WordPress plugin is a major decision. It could mean the difference between a lead and nothing.

We'll use this article to dive into why a calculator is helpful, then we'll show you the 7 best calculator plugins for WordPress. Let's get to it.

Formidable Forms is the best WordPress Form Builder plugin. Get it for free!

Why use a calculator plugin in WordPress?

If you're selling services online, calculators are a great tool to attract people to your site. Used correctly, calculators help you collect leads and email addresses.

Know what you can do with more leads and email addresses? Convert them to paying customers!

But you’ll need a WordPress calculator form plugin to do it.

Creating a calculator yourself involves editing code and spending hours tinkering with it. A plugin does all that for you with a few button clicks.

So, which would you honestly choose?

👉 Learn more: 6 Ways to Use Calculators on WordPress sites

The best WordPress calculator plugins

When looking for a custom calculator plugin in WordPress, there are a few things to remember.

First, the best calculator plugins feature an extensive library of calculator templates. Without useful templates, building something decent from scratch can be difficult.

Second, you need to be aware of the limits a plugin may have. Some plugins only focus on a specific calculator type. Others can handle many different types of calculator functions.

So, keep this in mind as you scan this list.

Here's a quick roundup of the 7 best WordPress calculator plugins:

Formidable Forms
Calculated Fields Form
ez Form Calculator
Responsive Mortgage Calculator
Product Options and Price Calculation Formulas for WooCommerce
CC BMI Calculator
Cost Calculator Builder

1. Formidable Forms

Best WordPress plugin form calculator 🏆

Formidable Forms WordPress best calculator plugin

Free and premium (from $79/year)

Rating: 4.7 stars (800+ reviews) | 300,000+ Active Installations

Formidable Forms is your top option if you want a WordPress custom calculator plugin that does calculators and more.

A calculator plugin is just a WordPress form builder in disguise, after all.

No matter what kind of calculator you want to build, Formidable can make it. Plus, it has dozens of pre-built calculator templates to get you started.

Here are a few of the top templates available with Formidable:

Mortgage Calculator Template
Compound Interest Rate Calculator
Final Grade Calculator
Investment Calculator
And many more

Get Started with Formidable Calculators!

You may wonder how these are useful to you. But, with our pre-built templates, you can save time setting up your WordPress form calculator. From there, you can keep it how it is or adjust it to suit your needs.

It’s your decision.

The real clincher here? Formidable Forms isn't just a WordPress calculator builder. It's a full-featured drag-and-drop form builder.

This means you can create much more than calculators and a simple contact form!

👉 Learn more: Formidable WordPress Calculator Plugin

2. Calculated Fields Form

Best WordPress slider calculator plugin 🏆

Free and premium (from €49.99/site)

Rating: 4.8 stars (800+ reviews) | 60,000+ Active Installations

Calculated Fields Form is another popular WordPress calculator creator. It includes a form builder with various field types.

What does this mean, though? Easy. It means you'll be able to create any kind of calculator you need!

Plus, it features many types of form fields to use, such as:

Text fields
Numeric fields
Slider controls
Checkboxes/radio buttons

So you have many options for your WordPress website calculator.

Just like Formidable, Calculated Fields Form can help you make many different types of calculator forms. For example, calorie calculators, quote calculators, cost estimates, and more.

Overall, a solid option in a WordPress plugin for calculator forms.

👉 Learn more: Looking for a Calculated Fields Form Alternative?

3. ez Form Calculator

Premium (from $49/site)

Rating: 4.5 stars (330+ reviews) | 5,500+ sales

This is a high-rated calculator WP plugin available on Code Canyon. With this plugin, you'll be able to create estimation forms, cost calculators, and payment forms with ease.

Unlike Formidable & Calculated Fields Form, it comes with a drag-and-drop form builder and several useful fields.

The one downside to this plugin is that it's premium only. This means there’s no free or “lite” plugin version you can test before buying.

4. Responsive Mortgage Calculator

Best WordPress calculator widget 🏆

Free WordPress plugin

Rating: 4.6 stars (20 reviews) | 10,000+ Active Installations

Responsive Mortgage Calculator will appeal to real estate webmasters looking for a way to provide value to their clients. And, best of all, it’s a free WordPress calculator plugin!

This mortgage calculator builder works just as you would expect. Input a few variables, and it spits out a summary with a nifty-looking chart.

One additional feature of this plugin is its calculator widget for WordPress. This is a feature many other plugins don’t offer!

5. Product Options and Price Calculation Formulas for WooCommerce

Free and premium (from $49/year per site)

Rating: 4.6 stars (70+ reviews) | 3,000+ Active Installations

This WP calculator plugin might work for you if you want to perform custom options within WooCommerce. You might choose this plugin if you don't need a dedicated form builder for your WordPress site.

The obvious shortcoming of this plugin is that it relies on WooCommerce to function correctly.

But this could be a great option if you are invested in that platform and want to extend the functionality.

So, you’ll want to analyze all the plugins for your calculator on WordPress before deciding.

6. CC BMI Calculator

Free WordPress plugin

Rating: 3.3 stars (4 reviews) | 1,000+ Active Installations

Looking for a fitness calculator? This one will do the trick. This is pretty much your standard BMI calculator. The best thing about this plugin is that it doesn't need a lot of configuration to start working on your site.

It does let you tweak some features, however. You can change the background color and borders and switch between imperial or metric units. But, it’s pretty basic for a calculator form in WordPress.

Lastly, it’s a WordPress calculator plugin for free! So those who are more budget-conscious will like this option.

7. Cost Calculator Builder

Free and premium (from $29/site)

Rating: 3.8 stars (100+ reviews) | 20,000+ Active Installations

If all you need is a simple cost calculator, then the Cost Calculator Builder plugin could be perfect. One of the things that this plugin can do is create price estimation forms.

This way, service providers can create forms that give customers an estimate of how much their services cost. You can create quotes for just about anything. Or, use this as a loan calculator.

It has some limitations compared to other plugins. Despite these, Cost Calculator Builder is still one of the best WordPress calculator plugins out there.

If you're price-conscious and have particular needs, grab this plugin.