Age Difference Calculator
What's the age gap
between us?
Enter two birth dates to calculate the exact age difference, down to the day.
🔒 Your inputs never leave your browser — nothing is sent to a server
Age Gap Ledger
Results update instantly as you type
Age Difference
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Same Chinese Zodiac?
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What is the Chinese zodiac connection?
In East Asian tradition, if two people share the same zodiac animal, they're often exactly 12 (or 24, 36...) years apart. We include this as a fun bonus fact.
Frequently Asked Questions
How accurate is this result?
The date math is exact based on the dates you enter.
Is my data stored or sent anywhere?
No. All calculations happen entirely in your browser.
Does this work on mobile?
Yes, the layout automatically adapts to your screen size.