About Age Finder
Age Finder is a small, independent site of calculators for age, dates, birthdays and pet years. The goal is simple: the right answer, explained clearly, without sign-ups or tracking.
What we build
Each calculator does one job well. The maths runs in your browser, so the dates you type never leave your device. Every tool page explains its method in plain language, shows a worked example and lists the sources we used.
How results are checked
- Calendar maths is covered by automated tests, including leap days, month ends and dates far in the past and future.
- Facts in the guides come from primary sources, such as Pew Research Center, veterinary associations and research centres, linked at the end of each page.
- Every page shows the date its facts were last reviewed. Read the editorial policy for the details.
Who is behind it

Founder & Editor, Age Finder
Toheed Mehmood is the founder and editor of Age Finder. He builds web tools and Android apps, and he writes, codes and tests every calculator on this site himself. The date maths runs against automated tests for leap years and month ends, and every guide cites primary sources such as Pew Research Center, the American Veterinary Medical Association and International Cat Care.
View author profileGet in touch
Spotted a mistake or have an idea for a calculator? Email agefinderonline@gmail.com. Corrections are checked against the original source and the page is updated with a new review date.