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What is Age Calculator?
Calculating someone's exact age — in years, months, and days — from a birth date is surprisingly complex due to varying month lengths and leap years. DailyDevTools' Age Calculator gives you the precise age from any birthdate to today (or any target date), and also shows the next birthday countdown, age in total days, and age in other units like weeks and hours.
How to use Age Calculator
- 1Enter the date of birth using the date picker
- 2The age is calculated instantly: years, months, and remaining days
- 3Optionally set a custom 'as of' date to calculate age at a specific point in time
- 4See additional details: total days lived, next birthday date, and day of the week you were born
Frequently asked questions
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