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32 free calculators

Calculators that model the numbers that matter

32 interactive calculators for fundraising, SaaS metrics, equity, hiring, GTM, and finance. Free, no signup, shareable via URL.
FAQ

Frequently asked questions

Are the calculators really free?+
Yes — completely free, no signup. Calculators run client-side; your inputs live in the URL so you can share or bookmark a result.
Do you save the data I enter?+
No. Calculators don't send anything to a server — all math happens in your browser. The 'shareable link' encodes inputs in the URL.
How are these calculators different from a spreadsheet?+
Same math, but with sane defaults, industry benchmarks, and explanations of every input. And the result is shareable via URL — useful for showing a co-founder or investor exactly what you modeled.
Are the benchmarks accurate?+
They're 2026 estimates from public sources (SaaS benchmarks reports, AngelList, Pulley, public company filings). Refreshed annually. Use as guideposts, not absolutes.