Free online tool

Age Calculator

Calculate age from a date of birth.

Date of birth

Result

Enter values

How to use this tool

1. Enter the valuesComplete the calculator fields with your numbers or dates.
2. Review the calculationResults update automatically when inputs change.
3. Adjust and compareChange any value to compare another scenario.

How does Age Calculator determine the result?

It applies the calculation represented by the fields in the workspace. Calculate age from a date of birth.

Why might Age Calculator display a rounded value?

Some calculations produce long or repeating decimals, so results may be rounded for readability.

Can Age Calculator calculate decimal values?

Yes. Decimal inputs are supported wherever they are meaningful for the calculation.

Tool guide

Input

Birth: 2000-01-01
Date: 2026-01-01

Output

26 years, 0 months, 0 days

Age Calculator helps you calculate elapsed years, months and days between two dates.

It works directly in the browser and is designed for quick, focused tasks without requiring an account.

Common uses include check age on a date and calculate elapsed time.

It can also help with prepare records and compare dates.

Enter dates in the correct format.

Confirm official eligibility with the responsible authority.

This tool processes its working input in your browser and does not intentionally upload it to a Toolsiva application server.

Avoid entering confidential material when your browser, device, extensions or clipboard environment is not trusted.

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