In Japan and Korea, blood type is as important as zodiac sign.
Blood type compatibility is a major part of dating culture across East Asia. Select your blood type and your partner's to get a detailed compatibility reading based on traditional Japanese and Korean beliefs.
How It Works
No account, no payment, no waiting. Your result appears in seconds.
Choose A, B, O, or AB from the first dropdown.
Pick your partner's blood type.
Get a full personality + compatibility analysis for your pairing.
Features
All features are available on the free plan — no subscription required to get your full result.
Every blood type combination — A+A, A+B, O+AB and all 16 possible pairings — covered.
Based on traditional Japanese "ketsueki-gata" — blood type personality theory used in Japan since the 1920s.
Each blood type has a personality reading: Type A (organised), Type B (creative), Type O (confident), Type AB (rational).
See how your personalities interact in love — where you connect and where you clash.
Send your blood type compatibility card to your partner.
No payment or sign-up required.
FAQ
Everything you need to know about the Blood Type Love Compatibility.
Type A: organised, anxious, perfectionist. Type B: creative, selfish, optimistic. Type O: confident, insensitive, leader. Type AB: rational, indecisive, unpredictable. These are traditional East Asian beliefs, not medical classifications.
Traditionally: O + A, O + B (O is the universal donor in personality too), and AB + AB. The "worst" pairing is considered A + B due to clashing personalities.
No — blood type personality theory is a cultural tradition popular in Japan and Korea, not a scientifically validated system. It's a fun framework for self-reflection.
Blood type has been used in Japan since the 1920s to predict personality and behaviour. Today it's used in everything from dating apps to job interviews across East Asia.
It takes under 30 seconds. Free, instant, and no sign-up required.
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