How precise is the age calculation?

Down to years, months, days, hours, and minutes. It correctly handles leap years and timezone differences.

Can I calculate age at a specific date?

Yes. Set the "as of" date to anything — past, present, or future — to see age at that moment.

The calculation uses your browser's local time zone. For precise cross-timezone calculations, enter birth and target dates in the same zone.

No. All calculation happens in your browser. No data is sent to any server or saved across sessions.

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How precise is the age calculation?: Down to years, months, days, hours, and minutes. It correctly handles leap years and timezone differences.
Can I calculate age at a specific date?: Yes. Set the "as of" date to anything — past, present, or future — to see age at that moment.
Does it handle time zones?: The calculation uses your browser's local time zone. For precise cross-timezone calculations, enter birth and target dates in the same zone.
Is my birth date stored?: No. All calculation happens in your browser. No data is sent to any server or saved across sessions.