Blood Type Compatibility Chart

Interactive matrix showing which blood types can donate to and receive from each other. Click any cell to see detailed compatibility information.

Donor →	O-	O+	B-	B+	A-	A+	AB-	AB+
O-	✓	✓	✓	✓	✓	✓	✓	✓
O+	✗	✓	✗	✓	✗	✓	✗	✓
B-	✗	✗	✓	✓	✗	✗	✓	✓
B+	✗	✗	✗	✓	✗	✗	✗	✓
A-	✗	✗	✗	✗	✓	✓	✓	✓
A+	✗	✗	✗	✗	✗	✓	✗	✓
AB-	✗	✗	✗	✗	✗	✗	✓	✓
AB+	✗	✗	✗	✗	✗	✗	✗	✓

Compatible

Incompatible

Mobile View

Select your blood type to see who you can donate to:

🩸 O- Universal Donor

O- blood has no antigens, so it can be given to anyone in emergencies. This makes O- donors incredibly valuable, especially in trauma situations.

Learn More →

🩸 AB+ Universal Recipient

AB+ blood has all antigens and no antibodies, so AB+ recipients can receive any blood type. However, they can only donate to other AB+ individuals.

Learn More →

Explore More Blood Type Tools

Blood Type Calculator

Calculate possible child blood types

Individual Blood Types

Learn about each blood type in detail

Blood Type Rarity

See how common each blood type is

⚠️ Medical Disclaimer

This chart is for educational purposes only. Actual blood transfusions must be verified by medical professionals using proper cross-matching procedures. Always consult healthcare providers for medical decisions.

Donor →	O-	O+	B-	B+	A-	A+	AB-	AB+
O-	✓	✓	✓	✓	✓	✓	✓	✓
O+	✗	✓	✗	✓	✗	✓	✗	✓
B-	✗	✗	✓	✓	✗	✗	✓	✓
B+	✗	✗	✗	✓	✗	✗	✗	✓
A-	✗	✗	✗	✗	✓	✓	✓	✓
A+	✗	✗	✗	✗	✗	✓	✗	✓
AB-	✗	✗	✗	✗	✗	✗	✓	✓
AB+	✗	✗	✗	✗	✗	✗	✗	✓

Donor →	O-	O+	B-	B+	A-	A+	AB-	AB+
O-	✓	✓	✓	✓	✓	✓	✓	✓
O+	✗	✓	✗	✓	✗	✓	✗	✓
B-	✗	✗	✓	✓	✗	✗	✓	✓
B+	✗	✗	✗	✓	✗	✗	✗	✓
A-	✗	✗	✗	✗	✓	✓	✓	✓
A+	✗	✗	✗	✗	✗	✓	✗	✓
AB-	✗	✗	✗	✗	✗	✗	✓	✓
AB+	✗	✗	✗	✗	✗	✗	✗	✓

Donor →	O-	O+	B-	B+	A-	A+	AB-	AB+
O-	✓	✓	✓	✓	✓	✓	✓	✓
O+	✗	✓	✗	✓	✗	✓	✗	✓
B-	✗	✗	✓	✓	✗	✗	✓	✓
B+	✗	✗	✗	✓	✗	✗	✗	✓
A-	✗	✗	✗	✗	✓	✓	✓	✓
A+	✗	✗	✗	✗	✗	✓	✗	✓
AB-	✗	✗	✗	✗	✗	✗	✓	✓
AB+	✗	✗	✗	✗	✗	✗	✗	✓