Age Calculator
Calculate your exact age in years, months, days and total days from any date of birth, plus a countdown to your next birthday.
Written by Rahman · Last reviewed
Quick answer
Your exact age is the elapsed time between your date of birth and a chosen date, expressed in years, months and days rather than as a decimal. Calendars complicate this: months vary in length and leap years add a day, so simply subtracting years gives the wrong answer either side of a birthday.
70 days until the next birthday, on January 1 — turning 27.
Results are estimates for general guidance only. Double-check any figure you rely on for an important decision.
About the Age Calculator
Your exact age is the time elapsed between your date of birth and a chosen date. It is needed for official forms, eligibility checks, milestones and simple curiosity.
This calculator shows your age in years, months and days, and also gives the totals in months, weeks and days.
Frequently Asked Questions
How is exact age calculated?
⌄
It counts complete years, then complete months, then the remaining days between your birth date and the chosen date, allowing for different month lengths.
Does it account for leap years?
⌄
Yes. The calculation uses real calendar dates, so leap years and varying month lengths are handled automatically.
Can I calculate age at a future or past date?
⌄
Yes. Change the second date to any date to find how old someone was, or will be, on that day.
Why might total months and days look unusual?
⌄
Because months have 28 to 31 days, the breakdown into years, months and days is precise, while round totals like "total days" are simple elapsed counts.