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No Calculate button — numbers update as you type.
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All math runs in your browser. Nothing is sent to us.
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Works beautifully on any phone, tablet or desktop.
Always free
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Every calculator is free. Premium removes ads and adds history. API Pro gives you 10,000 calls/day for apps and agents.
| Feature | Free | Premium |
|---|---|---|
| All calculators | ||
| Save favorites | ||
| Copy / share results | ||
| Print / PDF export | ||
| Ad-free experience | ||
| Unlimited history | ||
| API access (10k/day) |
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Frequently asked questions
›Are these calculators really free?
Yes. Every calculator on CalcPilot is free forever, with no signup and no watermark.
›Is my data private?
All calculations happen in your browser. We don't store or transmit your inputs.
›How accurate are the results?
Each calculator uses the standard formula for its domain. Results are estimates for informational purposes — not professional financial, medical or legal advice.
›Can I use these on mobile?
Yes. Every calculator is fully responsive and works on phones, tablets and desktops.
›What's the difference between Free and Premium?
Free includes every calculator and basic features. Premium removes ads and adds unlimited history. API Pro is a separate plan for developers who need API access.
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