Age Gap Calculator

Age Gap Calculator — instantly find the age difference between two people.

Pick two birthdays and get your exact age gap in years, months, and days. Plus rich details about both people: Chinese zodiac, Western zodiac sign, birthstone, birth flower, generation, day-of-week born on, and days until each next birthday.

Key Features
• Exact age gap in years, months, days
• Compatibility check based on Chinese zodiac
• Birthstone and birth flower for both people
• D-Day until each upcoming birthday
• Total days alive and days until age 100
• 20 supported languages
• Light / Dark theme + System default
• Recent calculation history (saved locally)
• One-tap share to messengers and social media

Perfect For
Couples curious about their age gap. Friends comparing birthdays. Parents tracking how many days until a child's next birthday. Anyone who loves zodiac, astrology, and birthstone trivia.

Privacy
All calculations happen on your device. No personal data leaves your phone. We only use Google AdMob to show non-intrusive ads (with GDPR consent in the EU/UK).

Free forever — supported by a small banner ad.