Calculator library
Browse calculators built for quick, clean answers.
Every tool runs entirely in your browser, with clear assumptions and privacy-first defaults.
Privacy-first by default
Inputs stay in your browser
Any ads stay contextual and minimal
Popular right now
Fast picks people use most
All calculations stay on your device.
All calculators
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Calculator library
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Why CalcWise feels different
Focused tools built for clarity, speed, and privacy.
Browser-only by design
Your inputs stay on your device. We do not store or sell data.
Clear assumptions
We show exactly what each calculator assumes and where the numbers come from.
Accessible outputs
Results include summaries, charts, and text-based breakdowns for everyone.
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- Tell us how you plan to use the results
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