Age calculator
Enter a date of birth for the exact age today. Change the date to see the age on another day.
Age
Counting age (Korea, Japan)
Zodiac year
Next birthday in
Days since birth
How to use
- Pick the date of birth.
- The second date is today; change it for the age on another day.
- Read the age, the East Asian counting ages and the zodiac year.
Questions
How is age counted?
0 on the day of birth, one more on each birthday. This is the legal age in most countries, and in Korea since June 2023 (만 나이).
What are the Korean ages?
Year age is this year minus the birth year, still used by some Korean laws. Counting age starts at 1 at birth and goes up every 1 January, the traditional way.
When does someone born on 29 February get older?
On 1 March in common years.
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