Blood Type Calculator: Child Inheritance from Parents

Your details

Most likely blood typeMost likely: A+
A+

The blood type with the highest probability for this parent combination

Probability of most likely type0.7%
Chance of Rh positive0.9%
Chance of Rh negative0.1%
O-0%
O+0.2%
A-0%
A+0.7%
B-0%
B+0%
AB-0%
AB+0%
Can donate red cells toA+, AB+
Can receive red cells fromO-, O+, A-, A+
O-0%
O+0.2%
A-0%
A+0.7%
B-0%
B+0%
AB-0%
AB+0%

Most likely blood type for this child: A+ (70.3%)

  • The child has a 70.3% chance of being blood type A+, the most probable outcome for this parent combination.
  • Rh factor: 93.8% chance of Rh positive, 6.3% chance of Rh negative.
  • If the child is A+, they can donate red cells to: A+, AB+.
  • If the mother is Rh negative and the child inherits Rh positive, the mother may need anti-D immunoglobulin during pregnancy to prevent hemolytic disease of the newborn.

Next stepThese are statistical probabilities based on Mendelian genetics. A blood test is the only way to determine a child's actual blood type.

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