How to use it
- Pick the date of birth.
- Optionally change the “as of” date (defaults to today).
- The exact age and next-birthday countdown update instantly.
~/lokafile / calculators / age-calculator
Age Calculator
Enter a date of birth and get the exact age — years, months and days — plus total days lived and the countdown to the next birthday.
—years
—months
—days
—total days lived
—days to next birthday
Nothing you enter is sent or stored.
Where exact age matters
Visa and passport forms, school enrollment cutoffs, insurance applications and retirement rules often need age to the day, not just the year. This calculator handles leap years and month lengths correctly, which is exactly where mental arithmetic goes wrong.
From the guides
How to Calculate Age from a Date of Birth — Exactly →Questions people ask
Is my file uploaded to a server?
No. Every other online converter uploads your file to a server. Lokafile never uploads anything — the work happens in your browser, so your file physically never leaves your device.
Do I need to sign up or pay?
No account, no payment, no watermark, no CAPTCHA before download. Free.
Does it work offline?
Yes — once loaded, you can disconnect and it still works. You can even install Lokafile as an app.
Is there a file size limit?
No artificial cap. The only limit is your device’s memory.
How is the age calculated?
Calendar-accurate: it counts full years, then full months, then remaining days, handling leap years correctly.
Is my date of birth stored?
No. The calculation runs in your browser and nothing is sent or saved.