About AgeCalc

AgeCalc is a free, ad-supported collection of browser-based calculators. Every tool runs entirely in your browser: the numbers you type are never sent to a server, stored, or shared.

Each calculator implements the standard formula for its domain and shows the intermediate values, so you can verify the result yourself rather than trusting a black box.

Accuracy

Calculations use IEEE-754 double precision — about 15 significant digits. They are intended for everyday planning and education, not for legal, medical or financial advice.

Contact

Questions or bug reports: contact us.