Child Blood Type Calculator
Predict possible child blood types with ABO + Rh inheritance and probabilities.
Child Blood Type CalculatorProbabilities assume equal genotype likelihood
Father
Mother
ABO Blood Type Rules
ABO is determined by A, B, O alleles (A/B dominant, O recessive)
Rh Factor Rules
Rh is determined by D/d alleles (D dominant); Rh+ includes D
Disclaimer
For education only; medical tests are authoritative
ABO Possibilities
A93.8%
O6.3%
Rh Possibilities
Rh+93.8%
Rh-6.3%
Combined Result
A+ 87.9%A- 5.9%O+ 5.9%O- 0.4%
Probabilities assume equal genotype likelihood
Possible Genotypes
Father Genotypes
AAAODDDd
Mother Genotypes
AAAODDDd
Child Genotypes
AAAOOOddDdDD
About This Tool
Choose parents’ ABO blood types and Rh factors to calculate possible child blood type combinations with probability estimates under equal genotype assumptions. Includes inheritance overview, possible genotypes, and copyable summary in a clean, responsive UI.
Features
- 🧬 ABO + Rh dual system calculation
- 📊 Probability view with equal-genotype assumption
- 🧫 Genotype reference for parents and child
- 📋 One-click copy for sharing results
- 📱 Responsive UI for mobile and desktop
- 🔒 Local processing, no data upload