Calculate exact age in years, months, and days between any two dates, with a next-birthday countdown.
Working out age for forms, eligibility, milestones, or just curiosity.
Enter date of birth
Pick the birth date using the date selector.
Set the target date
Leave it on today, or choose any date to find age at that point in time.
View the breakdown
See exact age plus totals and a countdown to the next birthday.
Counting age by hand is error-prone because months have different lengths and leap years shift the maths. This tool computes the exact difference in years, months, and days, and also expresses your age in total months, weeks, days, and hours.
Forms & eligibility
Confirm exact age for applications, age-restricted services, or benefits.
Milestones
Find out how many days or hours someone has been alive for a birthday surprise.
Date planning
Calculate age at a future event like a wedding or graduation.
Yes. The calculation uses real calendar dates, so leap years are handled correctly.
Yes. Set the "Age at date" field to any date on or after the date of birth.
No. Everything is calculated locally in your browser.