Age Calculator
Calculate age quickly with the free Age Calculator. Enter a date of birth and select the reference date to find the age in years, months and days. Use it for everyday date calculations, event planning and checking age intervals. The result is based on the dates you enter, so confirm the reference date if you need an exact age on a particular day.
What is Age Calculator?
Calculate age from a date of birth with the free Age Calculator. Enter a birth date and select a reference date to determine the age in years, months and days. Use it for personal planning, event preparation and everyday date calculations. For an exact age on a particular day, make sure the date of birth and reference date are entered correctly.
Why use this tool?
- Calculate and convert dates and times without a spreadsheet.
- Avoid mistakes with time zones and units.
- Check a result quickly while debugging.
How to use Age Calculator
- Step 1. Enter the date, time or value.
- Step 2. Choose any options the tool offers.
- Step 3. Read the result and confirm the time zone it uses.
Common use cases
Important notes
- Time zones and daylight saving time can change results, so confirm the zone you need.
More Time Tools
Age Calculator FAQ
What is Age Calculator?
Calculate age from a date of birth in years, months and days using a selected reference date for personal planning and date calculations.
Do I need an account to use Age Calculator?
No. You can use it without creating an account.