Utility toolLiveRuns on your device
Age Calculator
Calculate exact age from a date of birth in years, months and days. See total months, weeks and days, the weekday you were born and a countdown to your next birthday. Works as a date difference calculator too.
How to use
Age Calculator in three steps
- 01
Pick a date of birth.
- 02
Optionally change the “age on” date — it starts at today.
- 03
Read the exact age and copy any figure.
FAQ
Good to know
Like reading a calendar: full years first, then full months, then the remaining days. Total days count every calendar day between the two dates.
In years without a 29 February, the birthday is counted on 28 February.
No. The tool runs inside this browser tab. Your input is processed in memory on your device and is gone when you close the tab.
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