Enter a date of birth to compute exact age and check it against 18+ or a custom threshold. Runs in your browser; nothing is stored.
A quick utility: A calculator that turns a date of birth into an exact age and checks it against an age threshold.
▶ Open the tool — runs entirely in your browser; nothing is uploaded.
It handles the awkward part correctly — whether the birthday has occurred yet this year — so an 18+ or 21+ gate returns the right answer on the boundary. Useful when building or testing an onboarding age check.
It computes locally and stores nothing; it is a utility, not an identity check.
- Enter the date of birth.
- Set the age threshold (18 by default).
- Read the exact age and whether it meets the threshold.
No. It is calculated in your browser and never sent anywhere.
No. It computes age from a date you enter. Confirming that the date belongs to a real person is document or database verification, which this does not do.
It subtracts one year if the birthday has not yet occurred this calendar year, so someone turning 18 tomorrow reads as 17 today — the correct answer for a gate.
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