Age Calculator
Compute your age in years, months, and days — and your next birthday.
Quick utilityFully localized assumptionsGlobal-readyInteractive chart
Last updated: 2026-05-31
This calculator uses generic assumptions. Use advanced mode to override them for a more accurate result.
Inputs
Formula transparency
Source: defaultAge = ref − DOB (calendar-corrected)
Frequently asked
- Gregorian or Hijri?
- Gregorian. For Hijri, enter the equivalent Gregorian date.
- Can I compute age on a future date?
- Yes — use the reference-date field in advanced mode.
- Is my data saved?
- No, calculation is local to your browser.
- How is age computed?
- Calendar-corrected subtraction — year, month, day with borrow when needed.
- What if reference date is before DOB?
- It errors — the reference must be on or after DOB.
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Results are estimates and not professional advice. Verify important decisions with a qualified professional.