Calculate your age in years, months, days, hours, minutes, and seconds. Enter your birth date and the calculation date below.
Age can be calculated differently across cultures. This calculator follows the widely used age system, where a person's age increases on their birthday. For instance, someone who has lived for 2 years and 10 months is considered 2 years old, and their age turns 3 on their next birthday. This system is widely used in Western countries.
In some cultures, such as the traditional Chinese age system, a newborn is considered 1 year old at birth, and their age increases at the Traditional Chinese New Year instead of their birthday. Examples include:
| Scenario | Age (Traditional Chinese System) | Age (Common System) |
|---|---|---|
| Born on Dec. 31, one day before Chinese New Year | 2 years old (after 2 days) | 1 day old |
| Born on Feb. 1, just after Chinese New Year | 1 year old | 1 day old |
Age calculations can also be affected by the varying lengths of months. Examples of different interpretations are shown below:
| Date Range | Interpretation 1 | Interpretation 2 |
|---|---|---|
| Feb. 27 to Mar. 27 | 1 month | 1 month |
| Feb. 28, 2023 to Mar. 31, 2023 | 1 month and 3 days | 1 month |
| Apr. 30 to May 31 | 1 month and 1 day | 1 month |
This calculator adopts the first interpretation for consistency, but both methods are reasonable depending on the context.
Follow these steps:
Age calculators are useful for various purposes: