Calculator Builder

Pricing, quote, ROI and loan calculators for your site, with lead capture and CSV export.

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Free plan available

Calculator Builder overview

Number boxes, sliders, drop-downs
Formulas checked as you type
Four ready-made templates
Live preview while you build

Calculator Builder puts a working calculator on any page of your site, with no code. Start from a template (loan repayment, project quote, return on investment, price with volume discount) or from nothing. Add number boxes, sliders, drop-downs and tick boxes, then write each result as a formula such as pmt(rate_pct / 12, years * 12, amount). Formulas are checked as you type and run in a safe formula language: nothing a formula says is ever run as code. A live preview shows exactly what visitors will see. The calculator takes your site's font and light or dark theme, works on phones, and updates as a visitor moves a slider. Give each calculator its own page address, or let one show everywhere. Starter adds lead capture: visitors leave their name and email next to the result, you keep the numbers they entered on your own site, and download everything as CSV. Pro adds more room, print or save as PDF, and prefill from the page address. Free: 1 calculator. Starter ($7.99 a month): 5 calculators. Pro ($14.99 a month): 25 calculators. No meters on visits or submissions. Paid plans start with a 14-day free trial.

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Pricing & plans

Free plan

Free

1 calculator

4 inputs, 3 results

All templates and formulas

Starter plan

7

/month

5 calculators

Lead capture, 250 leads

CSV export

Own colour and wording

Pro plan

14

/month

25 calculators

1,000 leads kept

Print or save as PDF

Prefill from page address

* Price is in USD.

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