Child Blood Type Calculator
See every blood type your child could inherit from the parents' ABO and Rh blood groups, with probabilities from a full Punnett-square analysis.
Про Child Blood Type Calculator
The Child Blood Type Calculator works out every blood type a child could inherit from their parents, with a probability for each. Choose the mother's and father's ABO group and Rh factor and it builds the full Punnett square for both systems, then combines them into the eight possible types: A+, A−, B+, B−, AB+, AB−, O+ and O−.
ABO inheritance uses three alleles: A and B are co-dominant and O is recessive. That means a parent with type A blood may carry AA or AO, so two type-A parents can still have a type-O child. Rh works the same way with a dominant D allele — two Rh-positive parents can produce an Rh-negative child if both carry the recessive d.
Where a parent's visible blood type allows more than one genotype, the calculator treats each as equally likely, which is the standard textbook assumption. Real probabilities shift with family history and population frequencies, so treat the percentages as a genetics exercise rather than a test result.
Як використовувати Child Blood Type Calculator
- Select the mother's ABO group: A, B, AB or O.
- Select the mother's Rh factor, positive or negative.
- Do the same for the father.
- Read the list of possible child blood types with their probabilities.
- Note the most likely type shown at the top of the results.