About the Age Calculator
Enter a birth date to get exact age in years, months, and days as of today or any date, plus how many total days, weeks, and months old you are and the days until your next birthday.
How it’s calculated
Age is the calendar difference from the birth date to the reference date, accounting for the varying lengths of months.
Example calculation
Someone born on 1990-06-15, as of mid-2026, is about 36 years and 1 month old.
Frequently asked questions
Does it handle leap years?
Yes — it counts real calendar days, so February 29ths and varying month lengths are all accounted for.
Can I find my age on a past or future date?
Yes — fill in the second date field. Leave it blank to use today.
This tool provides estimates for general informational and educational purposes only. Results are based on the values you enter and standard formulas, and may not reflect your specific circumstances.