How to use the Age Calculator in a few steps
The Age Calculator gives you an exact result in seconds. Follow these steps:
Step 1: Enter your birth date
Use the date picker or type your date of birth into the day, month, and year fields. The tool accepts dates from any year, so it works for both children and adults.
Step 2: Set a reference date (optional)
By default the calculator uses today's date. If you need the age as of a specific day — for a form, a record, or an event — set a custom reference date instead.
Step 3: Get your exact age
Press Calculate. The tool returns your age broken into years, months, and days, shows the same age in other units, and highlights your next birthday with the days remaining.
What you need to get started
Only a modern browser such as Chrome, Firefox, Safari, or Edge. There's no installation and no signup — open the calculator, enter a birth date, and read the result.
Verdict
With the Age Calculator you get a precise, calendar-accurate age in every unit, plus your next birthday — all in a few clicks.