With the Free Online Blood Donor Calculator, you can determine the compatibility of blood types for donations.
Donating blood and plasma saves lives, and if you want to know who can safely receive your blood and which blood types you can receive yourself, this tool will help you understand that.
Instructions
Select Your Blood Type: Choose your blood type. If you're unsure about your blood type, you can determine it using my Blood Type Calculator.
Calculate: Click on the "Calculate" button to determine compatibility.
Results: The results will display which blood types you can donate to and receive from, both for blood and plasma.