Free Calculator Widget for Your Website

How to Add a Calculator Widget

Choose a calculator in the builder above and the preview updates at once. Press Copy embed code, then paste it into the page editor of your site. The widget is a standard iframe, so it works in almost any page builder.

• WordPress: add a Custom HTML block and paste the code
• Wix: add an HTML embed element and choose the code option
• Squarespace: add a Code block
• Blogger: switch to HTML view and paste

Editors that block iframes or scripts need a plan that allows custom HTML. If the resize script is removed, the widget still works, but you may need to set the height yourself. Test the page after publishing to confirm that the widget loads.

What You Get With Each Embeddable Calculator

Each embeddable calculator uses the same formulas as the full page on CalculatorsSpot. The widget shows the title, the fields and the results, with a small credit line underneath. It adjusts to the width of your column and grows as results appear.

• 63 calculators across finance, health, math and general tools
• No cookies, ads or tracking scripts inside the widget

Calculations run inside the visitor's browser. The currency converter also loads daily reference rates from our server. Nothing the visitor types is sent anywhere.

What the Code Contains

The code has three parts. The iframe loads the calculator from calculatorsspot.com. A short line under it holds the attribution link, and an optional script resizes the frame to fit the result. The credit names CalculatorsSpot and points to the full calculator.

Credit and Terms

Keep the attribution link under the widget. It is the only payment we ask for, and it helps visitors find the full calculator. Please do not hide it, cover it or change its wording.

You can use a widget on personal, school, business and nonprofit sites. Do not copy the calculator code to your own server or sell access to it. We may update or retire a widget, and results are estimates without a guarantee.

Light on Your Page

A widget loads one small page, one stylesheet and one script. It does not load fonts, analytics or ad code, so it adds little weight to your page. The frame loads lazily, so it appears only when a visitor scrolls near it.

Calculators That Work Well as Widgets

Finance blogs often embed the mortgage, loan EMI and compound interest tools. Health sites pick BMI, calorie and water intake. Teachers like the percentage, fraction and GPA tools, while shops use the tip, discount and sales tax tools.

Fixing Common Problems

• The frame is blank because the site builder blocks iframes
• The height looks wrong because the resize script was removed

Write to us from the contact page with the address of your page. We will look at the code and tell you what to change. Most fixes take a minute.

Start With a Calculator Widget

Pick an embeddable calculator, copy the code and publish. A calculator widget keeps visitors on your page and gives them the answer they came for. Come back whenever you need another one.

Frequently asked questions