Free Mortgage Calculator for your website!

Provide your site visitors this valuable calculator completely free of charge.


Instant Results Technology Your visitors won't need to click any buttons. Just enter the data and the result is calculated immediately.
No External Branding Nothing to distract visitors from your site. Only a simple link to our website is included (link opens in a new window).
Easy to Install Just one HTML tag for most cases (two when setting input).
Easy to View No Java Virtual Machine or Flash plug-ins are required to render our calculator.
Customizable Select size, border presense, background color, and initial input values to best fit the design of your site.

Simply copy the provided code and paste it on your web site.

  1. Click in the box next to the style you want to place the cursor in that box.
  2. Hit Ctrl+A to select all content.
  3. Hit Ctrl+C to copy the selection to clipboard.
  4. Find the location on your website to place the calculator.
  5. Hit Ctrl+V to paste calculator code.
  6. (Optional) Modify customization parameters.

Standard Calculator

Copy this code

Compact Calculator

Copy this code

Standard Calculator with border

Copy this code

Standard Calculator with border and blue background

Copy this code

Customize appearance

You can further customize the calculator by specifying query string parameters after the question mark sign (multiple parameters should be separated by &).
Parameter Values Description
size -4..4 Relative size of calculator. Default size is 0.
border 0,1 Whether to display border. Default is 0 (do not display).
color RRGGBB Background color. Any HTML color value is valid, both named (White, LightGrey, etc.) and RGB specified.

For example, to create a large calculator with border use the following code:

<script type="text/javascript" src=""></script>

This code will create regular size calculator with border and pink background:

<script type="text/javascript" src=""></script>

Initial input values

To set initial input values, add freeCalcMortgageSetInput function in a separate <script></script> tag.

freeCalcMortgageSetInput(homePrice, downPayment, interestRate);

Parameter Values Description
homePrice integer Home price. For example: 350000, '350,000'.
downPayment integer Amount of the downpayment. For example: 100000*0.2, 20000, '20,000'.
interestRate decimal Annual interest rate. For example: 4.875, 5.75, 6.0.

For example, this code will create a pink calculator with border and set the initial home price to $100,000, downpayment amount to 20%, and interest rate to 5.25:

<script type="text/javascript" src="" ></script> <script type="text/javascript"> freeCalcMortgageSetInput('100,000', 100000 * 0.2, 5.25); </script>


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