Tool
Age Calculator
Find exact age in years, months, and days between a birth date and any target date.
About the Age Calculator
"How old will they be on that date" is a surprisingly fiddly question once you factor in different month lengths and leap years. Enter a date of birth and, optionally, a date to measure against — it defaults to today — and this page works out the exact age down to the day, along with a few related figures you might need for paperwork or planning.
Things you can do here
- •Exact age breakdown — see the age in complete years, months, and days.
- •Pick any target date — calculate age as of today or any other date you choose.
- •Totals — see the same age expressed as total months, weeks, and days.
- •Next birthday countdown — find out exactly how many days remain until the next birthday.