DateOfBirth.org is a small set of free online tools for working with dates and ages. The aim is simple: answer a common question — “how old am I?”, “how long between these two dates?” — as quickly and accurately as possible, without sign-ups, clutter or guesswork.
What we offer
- Age Calculator — your exact age from your date of birth, with the day you were born, your zodiac sign and a countdown to your next birthday.
- Age Between Two Dates — the precise gap between any two dates in years, months and days.
- Days Between Dates — the exact number of days from one date to another.
Our approach
Every calculation runs entirely in your browser using real calendar arithmetic, so results are instant and your dates are never uploaded anywhere. The tools are designed to work just as well on a phone as on a desktop, and they are kept deliberately lightweight so they load fast on any connection.
Accuracy
We take correctness seriously: leap years and the differing lengths of months are handled automatically, and every breakdown reconciles back to the exact number of days. If you ever find a result that looks wrong, please tell us via the contact page — feedback is genuinely welcome and helps us improve.
The site is supported by advertising, which keeps the tools free for everyone. How ads and analytics work is explained in our Privacy Policy.