Age Calculator: Find Exact Age From Birth Date
An age calculator finds the years, months and days between a birth date and a target date. Exact age is needed for school, vaccination, insurance and retirement checks. Calendar rules apply automatically, everything runs in your browser. Results are for information only; civil records confirm official age.
Step by step
- Enter birth day, month and year in the correct order.
- Select the target date or today.
- Check the date format order.
- Press calculate and read the years, months and days.
- Review total months and days, confirm the dates.
- Compare with an identity document.
Example scenario
Born 15 March 1990, age on 7 October 2026: 36 full years to 15 March 2026, plus 6 months and 22 days. Result: 36 years, 6 months, 22 days. In total months: 36 times 12 plus 6 equals 438 months.
Check your result
Verify full years first: March 1990 means 36 in October 2026. Month and day parts count from the latest birthday. One-day gaps may come from formats.
Frequently asked questions
Leap years included?
Yes, Gregorian rules apply; February has 29 days in leap years.
Future age?
Yes, enter a future target date.
Surprising month-day parts?
They count from the latest birthday onward.
Official use?
Preliminary checks only; civil records rule.
Wrong date entered?
Check day-month order and years, recalculate.
Open the tool: Age Calculator →
Keep an original copy before processing your file. Examples are illustrative; results depend on your document.