Time & Date
Age Calculator
Age between two dates.
Educational estimates only. Not medical, legal, tax, or financial advice.
Guide: Age Calculator
What it does
Computes calendar difference between two dates.
How to use it
Enter birth date and “as of” date, then calculate.
Formula
Calendar arithmetic across years, months, and days (implementation-specific rounding).
Example
Born 2000-01-01, as of 2026-01-01 → 26 years.
FAQs
Does it account for leap years?
Date math should; verify edge cases around Feb 29.
Time zones?
Dates without times use calendar dates in local time—be careful near midnight UTC.
Legal age vs calculated age?
Jurisdictions define rules differently; this is a general calculator.