How to Calculate Korean Age
What is Korean Age?
Korean age (한국 나이) is a traditional age-counting system where everyone starts at age 1 at birth (representing the time spent in the womb), and everyone gains a year on 1 January rather than their individual birthday. South Korea officially abolished this system in June 2023 in favour of international age.
Formula
Step-by-Step Guide
- 1At birth: Korean age = 1
- 2On each 1 January: add 1 to Korean age regardless of birthday
- 3Korean age = Current year − Birth year + 1
- 4Someone born on 31 December becomes 2 years old the very next day (1 January)
Worked Examples
Frequently Asked Questions
What is Korean Age?
Korean age (한국 나이) is a traditional age-counting system where everyone starts at age 1 at birth (representing the time spent in the womb), and everyone gains a year on 1 January rather than their individual birthday. South Korea officially abolished this system in June 2023 in favour of international age
How accurate is the Korean Age calculator?
The calculator uses the standard published formula for korean age. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.
What units does the Korean Age calculator use?
This calculator works with inches. You can enter values in the units shown — the calculator handles all conversions internally.
What formula does the Korean Age calculator use?
The core formula is: At birth: Korean age = 1. Each step in the calculation is shown so you can verify the result manually.
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