Age Calculation Quick Tips

• • Your age changes on your birthday each year, increasing by exactly one year
• • Age is calculated from your birth date to the current date or any specified date
• • Different cultures may have different conventions for calculating age
• • Leap years are automatically accounted for in age calculations

How Age Is Calculated

Age calculation determines the time elapsed between your birth date and another date (typically today). The calculation accounts for years, months, and days, adjusting for varying month lengths and leap years.

In most Western cultures, you turn a year older on your birthday. However, some cultures (like in Korea) use different age calculation systems where everyone becomes a year older on New Year's Day.

This calculator uses the standard Western method, counting complete years, months, and days from your birth date to the target date.

Common Uses for Age Calculation