Age Calculator: Years, Months, and Days from a Date of Birth

An age calculator is for forms that want more than a rounded year. This age calculator returns full years, then the remaining months, then the remaining days.

Worked example

A date of birth of 15 June 1990, checked on 13 November 2026, is 36 years, 4 months, and 29 days. Run it on another day and the day count moves. That is the point of the tool: it uses the calendar, not a fixed age you typed last year.

Where the exact count matters

School cutoffs, visa forms, and insurance applications often want the age on a specific day. If the form says “age as of 1 April”, put that comparison date in mind and read the result on the day you need, or use the date calculator when you only need the number of days between two dates.

1. Open agecalculator.beastbrowser.com.
2. Enter the date of birth.
3. Copy the years, months, and days line.

More calculators are on the tool map.