Age Calculator — Find Your Exact Age in Years, Months, Days

Date of birth

Target date

First date

Second date

How this calculator works

This tool calculates the exact time between two dates, accounting for varying month lengths and leap years, so the years, months, and days shown are precise — not rounded estimates.

"Age Today" compares your date of birth to the current date. "Age at Date" lets you find out how old someone was, or will be, on any specific date — useful for legal documents, eligibility checks, or planning ahead. "Age Difference" simply finds the gap between any two dates, regardless of which one is a birth date.

Common uses

People use age calculators for school enrollment cutoffs, retirement planning, legal eligibility (voting, driving, drinking age), or just settling a friendly debate about who's older.