How to calculate your exact age
To calculate your exact age, open the ToolCrix Age Calculator and enter your date of birth. You get a precise breakdown in years, months and days — plus total days, weeks and hours lived, and a countdown to your next birthday. The calculation handles leap years and month lengths automatically.
Want to know your exact age — in years, months and days — or how long until your next birthday? This free age calculator gives a precise breakdown plus fun life stats, instantly and privately in your browser.
Why use an age calculator
Working out an exact age by hand is fiddly because months and leap years have different lengths. An age calculator handles all of that and gives you the precise number of years, months and days between two dates.
It's handy for forms, eligibility checks, birthday planning and curiosity — like seeing how many days or hours you've been alive.
How to use it (step by step)
- Open the Age Calculator.
- Enter your date of birth.
- Optionally set the ‘calculate as of’ date (defaults to today).
- Read your exact age in years, months and days.
- Scroll for total days/weeks/hours and your next-birthday countdown.
What you can use it for
- Filling in exact age on forms and applications.
- Checking age eligibility (work, licences, programmes).
- Counting down to a birthday or milestone.
- Working out the age gap between two people.
- Fun stats like total days or hours lived.
What it shows
- Exact age in years, months and days
- Total days, weeks, hours and minutes lived
- Day of the week you were born
- Days until your next birthday
Tips
- Use the ‘as of’ date to find your age on any past or future date.
- Great for calculating age at a specific event.
- Leap years are handled automatically.
- Dates are read locally, so there's no timezone surprise.
Frequently Asked Questions
How do I calculate my exact age?
Enter your date of birth in the ToolCrix Age Calculator and it shows your exact age in years, months and days, plus more stats.
Does it handle leap years?
Yes — the calculation accounts for leap years and different month lengths.
Is the age calculator free?
Yes — free, instant and private, with no sign-up.
Can I calculate age on a specific date?
Yes. Set the ‘calculate as of’ date to any date you like.
Is my data private?
Completely. The calculation runs in your browser; nothing is uploaded.
How do I calculate someone's age on a specific date?
Set the ‘calculate as of’ field to that date and the calculator returns the exact age on that day, accurate to leap years and varying month lengths.
How many days have I been alive?
Open the Age Calculator and enter your date of birth — it shows your total days, weeks, hours and minutes lived alongside your exact age in years, months and days.
Try it now: open the free Age Calculator or the Mortgage Calculator, or browse more guides.