Age Calculator
Find your exact age in years, months and days — and how long until your next birthday.
- Processed locally — your files never leave your device
- Free, no sign-up
- No file limits
How to use Age Calculator
- 1
Enter a date of birth.
- 2
Optionally change the “age on” date.
- 3
Read the exact age, totals and next birthday.
Features
- Exact to the dayHandles leap years and month lengths correctly.
- TotalsAge in months, weeks, days and hours.
- Birthday countdownSee when and on which weekday your next birthday falls.
Frequently asked questions
How are leap-day birthdays handled?
Someone born on 29 February turns a year older on 28 February in non-leap years.
Can I calculate age on a past or future date?
Yes, change the “Age on” date.
Is my birth date stored?
No, everything is calculated in your browser.