How is age calculated in years, months, and days?

The age is computed by subtracting the year of birth from the target year, adjusting for whether the birth day/month has passed in the target year, and calculating the remaining months and days dynamically.

Can I calculate my age at a future date?

Yes, by changing the 'Age at Date' input field to any future date, you can find out exactly how old you will be at that time.

Calculator Hub

Age Calculator

Calculate your exact age in years, months, weeks, days, hours, and minutes from your date of birth.

Age Calculator Widget

Calendar months are counted from the birth date, clamping to the last day of shorter months. Total days are independent of time zone and daylight saving changes.

Calculation Result

Enter inputs above and click Calculate to view results.

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About Age Calculator

The Age Calculator measures the exact duration from birth to a target date. It reports your age in years, months, and days, and offers equivalent counts in terms of total months, weeks, days, hours, and minutes.

This tool is extremely helpful for verifying age milestones, checking school admission eligibility, or calculating the age of historical artifacts and document signings.

Frequently Asked Questions

Worked example

Example: January 31, 2023 to March 1, 2023 is 1 calendar month and 1 day using the month-end convention, or 29 total days.