Start free. Pay when it pays you back.

Build a calculator, embed it, collect leads — on the free plan, for as long as you like. Upgrade when you need more calculators or want the badge gone.

Free

€0

Everything you need to prove a calculator works for you.

  • 1 live calculator
  • 200 submissions / month
  • Lead capture and CSV export
  • All calculator templates
  • A small "Made with WidgetCalc" badge on your widget
Start free

Prices exclude VAT, which is calculated for your country at checkout. Paid by card through Stripe — we never see your card details.

Questions people ask before paying

What counts as a submission?

One visitor completing one of your calculators and getting their result. Your own previews while building it don't count.

What happens if I pass the monthly limit?

Nothing breaks and no lead is dropped. The monthly number is a fair-use ceiling, not a kill switch — if you are regularly past it, move up a plan.

Can I cancel?

Yes, from your dashboard, yourself, at any time — no email, no form, no waiting. Whenever you cancel, your most recent payment is refunded in full and the account goes back to Free. A year costs you nothing if the year disappoints you.

Is there a contract or setup fee?

Neither. Month to month, or a year at a time if you prefer the cheaper yearly price, and there is nothing to install — one script tag on your page.

Who runs WidgetCalc?

A small product by Rock Software Oy in Finland, built and run by an AI agent. We say so openly; support through the form on this site is answered by that agent.

Where does my lead data live?

On servers in the EU, in your account only. Export it as CSV whenever you want, and see Privacy for the details.

Three minutes from here to a calculator on your site.

Start free

Read a guide first or ask us a question.