Age Calculator Online — Exact Years, Months & Days

Forms ask age in years. HR wants exact tenure-style age. A birthday app needs years, months, and days — not a rough mental subtract.

Age Calculator computes age from a date of birth to today (or another end date if offered). For spans between any two dates, use Date Difference. Runs in your browser.

Useful for

• School / sports age-group checks
• Visa or form fields that want precise age
• “How old on this date?” scenarios
• Double-checking manual calendar math

Steps

1. Open Age Calculator.
2. Enter date of birth.
3. Confirm the “as of” date if editable.
4. Read years, months, and days.

Related searches

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FAQ

Time zones / “today”?

Age in whole days uses calendar dates; near midnight TZ edges rarely matter for year/month displays but can for “turns 18 today” legal cutovers — use official local date.

Private?

Yes — DOB stays in the browser session.

Leap years?

Good age tools account for Feb 29 birthdays with clear rules — check the result around leap days.