Age Calculator
Enter values to calculate age with a clear result.
Calculate
Enter values and select Calculate.
How it works
Exact age = complete calendar years, then complete calendar months, then remaining days between the birth date and reference date. Calendar month lengths and leap years are respected.
Worked examples
- Born October 17, 2000; as of October 17, 2026: 26 years, 0 months, 0 days
- Born January 1, 2020; as of January 11, 2020: 0 years, 0 months, 10 days
Frequently asked questions
Is this calculator free?
Yes. You can use it without paying or creating an account.
Does it work on a phone?
Yes. The page adapts to small and large screens.
Can I enter zero?
Where zero is mathematically valid, the calculator accepts it.
What happens if I enter an invalid value?
You will see a clear message explaining what to correct.
Does the calculation run in my browser?
Yes. The calculator runs with JavaScript on your device.
Related tools
Last updated: October 17, 2026