Blood Type Inheritance Calculator

Mother blood type O A B AB

Rh+ Rh-

Father blood type O A B AB

Rh+ Rh-

Calculate

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Chance for type A :

Chance for type B :

Chance for type AB :

Chance for type O :

Chance for type Rh+ :

Chance for type Rh- :

How to Use:

1. Mother’s Blood Type: Select the mother’s ABO blood type (A, B, AB, or O) and Rh factor (positive or negative).
2. Father’s Blood Type: Select the father’s ABO blood type (A, B, AB, or O) and Rh factor (positive or negative).
3. Click “Calculate.”

Results Explained:

• Chance for Type A: The percentage chance your child will have blood type A.
• Chance for Type B: The percentage chance your child will have blood type B.
• Chance for Type AB: The percentage chance your child will have blood type AB.
• Chance for Type O: The percentage chance your child will have blood type O.
• Chance for Rh+: The percentage chance your child will have a positive Rh factor.
• Chance for Rh-: The percentage chance your child will have a negative Rh factor.

Disclaimer:

• This calculator is for informational purposes only and does not constitute medical advice.
• Blood type inheritance can be complex, and this calculator only provides probabilities based on the ABO and Rh systems. Other factors and rare blood types are not considered.
• For accurate blood type determination, please consult with a healthcare professional.

How It Works:

The calculator uses Punnett squares to determine the possible combinations of alleles (genes) for blood type (A, B, O) and Rh factor (+ or -) that a child could inherit from their parents. These combinations are then used to calculate the probabilities of each blood type and Rh factor.