Calculate your exact age
This age calculator tells you precisely how old you are - in years, months and days - and how many days are left until your next birthday. Just pick your date of birth and get the answer instantly. Everything runs in your browser, so your information stays completely private.
How to use it
- Select your date of birth.
- Tap Calculate age.
- See your exact age and your next-birthday countdown.
How exact age is calculated
Your exact age is the time elapsed from your date of birth to today, broken into full years, then remaining months, then remaining days. The calculator handles the tricky parts people get wrong by hand: months of different lengths, leap years, and birthdays that have not yet arrived this year. Someone born on 29 February gets the correct handling too, with the birthday counted on 28 February or 1 March in non-leap years depending on convention.
More than just years
Beyond years, months and days, the tool shows your age in total months, weeks, days, hours and minutes, which people use for milestones like a 10,000th day, for astrology charts, and for filling official forms that ask for age in completed years as of a specific date. Set any target date to compute age at that moment, such as an exam cutoff or visa application date.
Common uses
- Official forms asking age in completed years on a given date
- School admission and exam eligibility cutoffs
- Age difference between two people
- Milestone tracking for babies and anniversaries
Embed this tool on your website
Copy this code into your blog or website to give your readers a working Age Calculator, free. Please keep the credit link.
Frequently asked questions
Is this age calculator accurate?
Yes. It calculates the exact difference in years, months and days using full calendar logic.
Is my birth date stored anywhere?
No. The calculation runs in your browser and nothing is sent or saved.
Can I use it for any date?
Yes, pick any birth date and it shows your current age and days to your next birthday.
Is it free?
Yes, completely free with no signup.