Date calculator
Pick two dates to get the gap in days, weeks and months, or enter a date of birth to find the exact age in years, months and days. Everything is computed live, with no data sent anywhere.
Frequently asked questions
Is anything sent to a server?
No. The calculation runs entirely in your browser — nothing is ever sent to our servers.
How do I count the days between two dates?
Use the first block: pick a start and end date; the number of days (plus weeks and months) appears instantly.
How is the age calculated?
Enter a date of birth in the second block: the exact age in years, months and days up to today is computed using calendar-correct borrowing.
Is this tool really free?
Yes — completely free, with no sign-up, no ads and no artificial limits.
Are my files kept or shared?
No. All processing happens directly in your browser: your file is never uploaded to our servers, stored, or shared. It never leaves your device.