Age Calculator

This age calculator determines a person’s age based on a provided birthdate. It converts calendar dates into an exact age to remove manual date calculations.

Formula

The calculation compares the current date to the birthdate by subtracting years and then adjusting for whether the birthday has occurred in the current year. Months and days are derived by sequentially subtracting complete years and months from the start date.

Worked Example

If a birthdate is March 15, 1995 and the current date is March 10, 2026, the initial year difference is 31 years. Because the birthday has not yet occurred, one year is subtracted, resulting in an age of 30 years, with remaining months and days calculated from the last birthday.

Common Use Cases

This tool is commonly used for verifying eligibility requirements, calculating ages for financial planning, and confirming age-based compliance. It is also useful for administrative records where precise age representation is required.

Limitations

The calculator assumes the Gregorian calendar and uses the user’s current system date. It does not account for historical calendar changes or time zone differences at the moment of birth.

Frequently Asked Questions

How accurate is this age calculator?
The calculator provides exact age values based on standard calendar date differences.

Does it include leap years?
Yes, leap years are automatically handled through native date calculations.

Can it calculate age in months and days?
The result includes years, months, and days for a precise age breakdown.

Is any data stored?
No input data is stored or transmitted beyond your browser.

This tool is provided for informational purposes only and does not constitute legal, financial, or professional advice.