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Age difference calculator
The exact age gap between two people in years, months and days.
- Free
- No sign-up
- Works on any device
About Age difference calculator
Enter two birth dates and get the exact gap between them in years, months and days. It is a quick way to settle questions about siblings, couples or classmates. The calculation counts calendar months, so a gap from the 31st to the 1st is handled properly.
How to use Age difference calculator
- Enter your numbers above.
- The result updates instantly as you type.
- Change any value to compare different cases.
Why use this tool?
- Private: everything happens in your browser. Nothing you enter is uploaded.
- Free, with no sign-up, no watermark and no limit on how often you use it.
- Works on phones, tablets and computers: Android, iPhone, Windows, Mac and Linux. Nothing to install.
- Available in 10 languages.
Also known as
Frequently asked questions
Does the age gap change over time?
The gap in days stays fixed forever. The ratio between ages changes, though: a 5 year gap is large for a 10 year old and small for a 50 year old.
Is Age difference calculator free?
Yes. Age difference calculator on Toolipedia is free to use, with no sign-up and no watermark.
Is it safe to use?
Yes. Everything is worked out in your browser, and nothing you enter is sent to our server.
Does it work on my phone?
Yes. It works in any modern browser on Android and iPhone, as well as on tablets and computers. There's nothing to install.
Do I need an account?
No. Just open the page and use the tool. There's no sign-up and no email needed.