What it calculates
Use this tool to compare two birth dates or milestone dates. It returns the gap in years, months, days, total days, total weeks, and approximate total months.
Date tools
Age Difference Calculator
Compare two dates of birth and find the exact calendar age gap.
How to use it
Enter the two dates you want to compare. The calculator sorts the earlier and later date automatically, so the result is always a positive age difference.
Browse General Age Calculators
General Age Calculators overview
Use these calculators for everyday date questions, exact age gaps, and reverse age-to-birth-year lookups.
View category hubRelated age calculators
Compare two dates
Find the exact age gap between two dates.