Free for any site

Add a free break-even calculator to your site

Writing about opening a restaurant or café? Drop in the same calculator that powers Validator — your readers run their numbers without leaving your page. One line of HTML, no signup, free forever.

Copy the snippet

One line of HTML — no API key, no account.

Paste it anywhere

Blog post, course page, Notion, WordPress, Ghost — anywhere you can add HTML.

Done

Your readers run break-even math on your page. It updates live as they type.

Copy this snippet

<iframe
  src="https://fnbvalidator.com/embed/breakeven"
  width="100%"
  height="640"
  style="border:0;max-width:460px"
  loading="lazy"
  title="F&B Break-Even Calculator by Validator">
</iframe>

Live preview

The fine print (there’s barely any)

Free for personal and commercial sites alike.
Keep the “Powered by Validator” link intact — that’s the only ask.
Numbers are estimates for guidance, not financial advice.
Want a deeper tool? the full validator runs a 12-month P&L, free.