No coding required   /   Zapier integrations   /   Easy to embed   /   SSL Protected   /   PayPal & Stripe Integration

Web calculator platform - Calculoid

All you need for interactive web calculator

Web calculator with Math functions

All math functions

Calculate anything like an Excel Spreadsheet. Easily, online and in real-time.

Web calculator with Custom design

Custom design

Design and brand your calculators easily so it looks like a native part of your website.

Web calculator with Secured data

100% Security

All calculators, as well as transferred data, are secured with SSL encryption. 

Web calculator for All platforms

All platforms

Calculators can be embedded in any website or web application. Easily and with minimal effort.

100% mobile web calculator

100% mobile

All Calculoid calculators are 100% mobile and touch screen friendly. 

Web calculators templates

Calculate anything. Choose a template or start from scratch.
Boost your website interactivity, generate leads, accept payments.

E-commerce template


Online payments included

Pricing Calculator

Calculate prices for products or services in real time and get paid online.

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ROI Calculator

Calculate ROI of your products and services and collect customer leads. 

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Loan & Debt Calculator

Any finance-related calculations for your users - insurance, loans, debts.

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Costs Calculator

Calculate the costs of projects or services online & easily.

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Saving Calculator

Calculate any saving for your customers and send email to collect the leads.

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Online payments included

Online Store

Create a simple online store, calculate the final price and get paid online.

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Web calculator, quiz or survey in a few clicks

1 Choose template

Choose one of the Calculoid professional templates or start a new calculator from scratch. 

2 Customize it to your needs

Customize your fields, calculation or design easily in an intuitive drag & drop wizard. 

3 Publish it easily

Publishing your calculator on any website takes a matter of seconds just by using the embed code or Iframe. 

4 Generate Leads

Let your web visitor submit their contac details in order to get the results of calculations.

5 Accept online payments

Accept PayPal and credit card payments with your calculator. 

Need the full power of Calculoid?
Our support experts are ready to create the calculator for you.

Send request

Calculoid special plugins and integrations

Web calculators blog

Start Free Now

Create your own web calculator in a matter of minutes.
Test all features in the 30-day free trial. 

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No credit card or installation needed


Contact us


US: +1 415 800 3787
UK: +44 207 097 3577
CZ: +420 222 743 843
Office hours: 9:00 - 17:00 UTC+1



Easy Software Ltd.

Kemp House, 152-160
City Road, EC1V
2NX London, United Kingdom
Company ID: 08960980
VAT ID: GB226711521

Easy development center

Jugoslávských partyzánů 34
160 00 Prague
Czech Republic