Age Calculator

Calculate age between any two dates with quick date selection

This free Age Calculator helps you quickly find out how old you are today—or on any specific date. Just enter a date of birth and optionally choose an "as of" date to see your exact age in years, months, weeks, days, hours, minutes, and seconds. Calculations consider calendar realities such as leap years, while time zone and daylight saving time behavior follow your device and browser settings. Whether you need a precise age for forms, milestones, or curiosity, this tool is fast, privacy-friendly, and easy to use. No sign-up required.

How to Use

  1. Enter a Date of Birth (month, day, year)
  2. Optional: Choose an "As of" date to compute age on a target day
  3. Click Calculate Age Difference to get results
  4. View your age in multiple time units and next birthday details

Examples

  • DOB: 2000-01-01 → Age today in years, months, and days
  • DOB: 1995-08-30, As of: 2030-01-01 → Age on a future date
  • DOB: 1985-06-15 → Current age with leap year accuracy

Frequently Asked Questions

How accurate is this age calculator?

It uses calendar-aware math for years/months/days. Time unit conversions follow standard assumptions and your system time zone.

Does it account for leap years?

Yes—date differences across leap years are handled by the underlying date library/logic.

What about time zones and DST?

The tool follows your device/browser time zone and DST rules; results can differ if time zones differ.

Can I calculate age on a specific date?

Yes—set an "As of" date to compute age on that date.

How are months and weeks calculated?

Months follow calendar month differences; weeks/days/hours/minutes/seconds use standard unit conversions.

Why do results differ from other sites?

Implementations vary in edge cases (end-of-month, leap days, midnight boundaries, or time zones).

Is this calculator free to use?

Yes, this age calculator is completely free with no registration required.

What date range does it support?

The calculator supports dates from 1900 to 2100, covering most practical use cases.

How can I get help or report an issue?

If you encounter any problems or have questions, please contact us at [email protected]. We're here to help!