Calculators
Age Calculator
Enter your date of birth (and optionally any reference date) to get your exact age in years, months and days, plus totals in months, weeks, days and hours and a live countdown to your next birthday.
Examples
Input · Also shows total days, weeks and hours.
DOB 1990-01-15, today
Output
36 yr 5 mo 14 d
How to use Age Calculator
Enter your birth date
Pick your date of birth in the date field.
Choose a reference date
Leave it as today, or set any date to find your age then.
Read the results
See exact years/months/days, totals and your next birthday countdown.
Why use this tool
Exact years, months and days
Totals in months, weeks, days, hours
Next birthday countdown
Runs entirely in your browser
Frequently asked questions
It uses real calendar math, subtracting your birth date from the reference date and accounting for varying month lengths and leap years.
Yes — set the “age at date” field to any date to see your age on that day.
Discussion
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