Blood Type Inheritance Calculator

A Blood Type Inheritance Calculator is a tool that predicts a child’s possible ABO blood type and Rh factor based on the blood types of the parents. It follows basic genetic rules, where blood types (A, B, AB, O) are determined by inherited alleles, and the Rh factor (positive or negative) depends on dominant and recessive genes. Explore more science resources and calculators on our website.

By entering the parents’ blood types, the calculator shows all possible combinations for the child and the probability of each. This tool is useful for medical planning, genetic education, and family-related questions.

How Blood Type Inheritance Works

Blood types are inherited from both parents. Each parent contributes one of two alleles: A, B, or O. The resulting combination determines the child’s blood type:

• AA or AO = Type A
• BB or BO = Type B
• AB = Type AB
• OO = Type O

How to Use the Blood Type Calculator

1. Select blood types for both parents using the dropdowns.
2. Click “Calculate” to see all possible blood types for their child.
3. Compare the results with Punnett squares or explore genetic probabilities.

You can also go through – Barr Body and X-Inactivation Calculator

FAQs – Blood Type Genetics

1. Can two O blood type parents have a child with A or B blood?

No. Two O type parents can only produce O type offspring.

2. Can two A type parents have a B blood type child?

Not under standard ABO inheritance. B would only occur if one parent carries a B allele.

3. How accurate is this calculator?

It reflects known ABO inheritance patterns. Real-world mutations or rare subtypes may differ.