Free embeds
Put any of our 1,327 calculators on your website
Pick a calculator, set the figures your readers should start from, copy three lines of code and paste them into your page. Works on any site that accepts HTML: WordPress, Squarespace, Webflow, Ghost, Shopify, plain HTML.
Build your embed
Chosen: Mortgage Payment Calculator · open its page
2Set your own figures (optional)
Readers start from the figures you enter here. Tick Fix to hide a field and keep it at your figure, for example your own rate or price. Free for everyone.
Keep these figures on your account. Your embeds of this calculator then follow them wherever they run, and you can change a rate here later without touching your pages.
With Personal these figures can live on your account instead of in the code, so changing a rate once updates every page that embeds it.
- Free to embed, on as many pages and sites as you like.
- No account, no API key, nothing to approve.
- No ads inside the calculator, on any plan, ever.
- No tracking of your readers. The frame sets no cookies and stores no identifiers. We count views per website, nothing more.
Editors that support oEmbed (Ghost, Discourse and others) can embed a calculator by pasting its address. What changed.
Live preview
Exactly what your readers will see
The real calculator, running here the same way it runs on your page.
Calculator by CalculatorFox
How it behaves on your page
- Fits the width you give it, from a narrow sidebar to a full column.
- Height adjusts itself as the answer grows, so there is no scrolling inside the frame and no dead space under it.
- Works in metric and imperial where the calculator offers both, and in any display currency.
- Computes in the reader's browser. Nothing they type is sent to us.
- If the frame ever cannot load, the credit line is still a working link to the calculator, so your page never shows a blank box.
Where it is used
- A mortgage broker's rates page: the mortgage payment calculator, with the broker's own rate fixed, so visitors see what that rate means for them.
- A fitness blog's calorie article: the calorie or macro calculator right under the paragraph that explains it, instead of a link that sends readers away.
- A contractor's quote page: the concrete or paint calculator with the contractor's price per unit already filled in.
Free and paid, plainly
| Free | Every calculator, unlimited sites, your own starting figures and fixed fields, automatic height, no ads, no tracking. A small "Calculator by CalculatorFox" line sits under the frame. |
|---|---|
| Personal | $29 a year or $5 a month. Removes the credit line, applies your accent colour, shows you which websites use your embeds, and keeps your figures on your account so one change reaches every page. See pricing. |
No trial games and no hidden limits. Calculator addresses are permanent: read our URL commitment.