Age Calculator

Borrowing months and days is where simple subtraction goes wrong — this does it properly.

Why not just subtract years

Because months and days borrow. Someone born on 15 June 1995 is 31 years and 4 months on 3 November 2026 — not 31 years and 5 months.

29 February

For leap-day birthdays, most jurisdictions treat 1 March as the birthday in non-leap years.

What is my age in days?
The calculator shows total days below the headline.
Does time of birth matter?
No — legal age uses the calendar date on the certificate.