Age Calculator
Enter a date of birth to see the age in completed years as of today or any date you choose. You also get how many days remain until the next birthday and how many days have been lived so far.
Enter a date of birth to see the age.
Age
- Next birthday in
- Days lived
- Korean year age
- Traditional Korean age
Since June 2023, Korean law, contracts and official documents use international age. Year age is only used where a law says so, such as military service and youth protection.
People born on February 29 are counted one year older on March 1 in non-leap years.
What is Y% of X?
Answer
X is what percent of Y?
Answer
Percent change from X to Y?
Answer
X increased or decreased by Y%?
Answer
Korean VAT (10%)
VAT is 10% of the supply value. Working back from a total, VAT is total × 10/110.
- Supply value
- —
- VAT
- —
- Total
- —
Computing the tax per item and rounding each before adding can differ slightly from the tax computed once on the total.
Days between two dates
- In weeks
- In months
Pick two dates to see how many days apart they are.
Add or subtract days (D-day)
Enter height and weight to see your BMI.
- Total interest
- Total paid
| No. | Payment | Principal | Interest | Balance |
|---|
About this tool
How to use it
- 1 Enter the date of birth.
- 2 Age, days until the next birthday and days lived appear right away.
- 3 To get the age on a particular date, change the reference date. Leave it empty for today.
Good to know
- Loan interest uses the annual rate divided by 12. Lenders that charge daily interest can differ by a few cents per payment
- Prepayment fees, grace periods and variable rates are not supported
- BMI is not a reliable measure for children and teens, during pregnancy, or for very muscular people
Frequently asked questions
Can I find someone's age on a past or future date?
Yes. Put that date in the reference date field.
How are February 29 birthdays handled?
In non-leap years the birthday is counted on March 1.
Is my date of birth sent anywhere?
No. The calculation happens in this browser.
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