Date & Time Tools
Age Calculator
Calculate dates, times and durations with Age Calculator. Free, fast and mobile-friendly. No sign-up required, and calculations or text processing run locally in your browser whenever possible.
Calculate exact age in years, months and days for any as-of date.
Age
Months432
Weeks1,878
Days13,149
Age36 years 0 months 0 days
13,149 total days old on May 03, 2026.
What is age calculator?
Calculate age from a birth date to today or any custom date. Results show a readable age plus total days, weeks and months.
How to use age calculator
- Enter the dates or times required by the Age Calculator.
- Adjust options such as included days, business days or time zones where available.
- Read the instant result and copy the values you need.
When to use age calculator
- Calculate exact age
- Check age on a future date
- Find total days old
- Prepare form or eligibility dates
FAQ
Can I calculate age on a future date?
Yes. Change the as-of date to calculate age on any date.
Does it show total days?
Yes. The calculator shows the exact age and supporting totals such as total days and months.