Days, weeks and months between two dates, with working days that exclude South African public holidays.
Age Calculator
Exact age in years, months and days, plus total days lived and the next birthday.
Calculated in your browser — your date of birth is not sent anywhere
How it works
Age is counted in whole calendar units: first the number of full years, then full months since your last birthday, then remaining days. If the day of the month hasn’t been reached yet, one month is “borrowed” and the days of the previous month are added.
Totals (days, weeks, months) count every calendar day between the two dates. Dates are compared as calendar days, so time zones and daylight saving don’t affect the result.
Example
Someone born on 16 June 1990 is 36 years, 4 months and 0 days old on 16 October 2026 — 13,271 days in total. Their next birthday is a Wednesday, 16 June 2027.
Frequently asked questions
How is exact age calculated?
We count complete years since your date of birth, then complete months, then the remaining days — the same way people normally state age. Totals in days and weeks count every calendar day between the two dates.
What if I was born on 29 February?
In non-leap years your birthday is treated as falling on 1 March for the “next birthday” countdown, because 28 February would make you a day younger than you are. Conventions vary by country and purpose.
Can I calculate age on a past or future date?
Yes. Change the “Age on” date — for example to check someone’s age on the date of an event or an application deadline.
Related tools
Convert Unix timestamps to dates and back, in UTC, South African time or your local time zone.
Find X% of a number, or what percent one number is of another.
Work out percentage change, apply an increase or decrease, or reverse one to find the original value.
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