Age Calculator
Calculate exact age in years, months, days, hours, and minutes from any date of birth.
Calculate exact age between any two dates. See years/months/days plus totals (months, weeks, days, hours, minutes, live-ticking seconds), the day of the week you were born, your astrological sign, and a countdown to the next birthday.
When to use it
- 1Quickly answering 'how old am I in months / weeks?'
- 2Calculating someone's age as of a past or future date.
- 3Sharing a fun stats card on a milestone birthday.
How it works
- 1
Pick two dates
Date of birth and an as-of date (defaults to today). Both can be in the past or future.
- 2
Read the stats
The big card shows the breakdown. Smaller cards show running totals - seconds tick live.
- 3
Plan the next milestone
Next-birthday countdown is included. Plan your next celebration.
Frequently asked
Is the day-of-week stat accurate?
Yes. We use the Gregorian calendar from 1582 onwards. Pre-Gregorian dates are technically valid but historically inaccurate.
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