Blood Type Predictor - Results

📋 This is a sample result. To calculate your own, click here.
🩸
Parents: A+ × B+
AB+
18.8–100%
A+
0–50%
B+
0–50%
AB-
0–25%
O+
0–25%
A-
0–12.5%
B-
0–12.5%
O-
0–6.3%

🔬 Possible Blood Types for Your Baby

Blood Type Probability % of Population
AB+ 18.8–100% 3% of population
A+ 0–50% 34% of population
B+ 0–50% 9% of population
AB- 0–25% 1% of population
O+ 0–25% 38% of population
A- 0–12.5% 6% of population
B- 0–12.5% 2% of population
O- 0–6.3% 7% of population

📊 Blood Type Rarity

Here is how common each blood type is in the general population:

Blood Type % of Population Possible for Your Baby
O+ 38% ✓
A+ 34% ✓
B+ 9% ✓
AB+ 3% ✓
O- 7% ✓
A- 6% ✓
B- 2% ✓
AB- 1% ✓

📋 Blood Type Inheritance Chart

This chart shows every possible baby blood type (ABO only) for all parent combinations. Probability ranges depend on whether a parent carries a hidden recessive allele.

Parents Possible Baby Types Not Possible
O × O O ABAB
O × A OA BAB
O × B OB AAB
O × AB AB OAB
A × A AO BAB
A × B ABABO -
A × AB ABAB O
B × B BO AAB
B × AB ABAB O
AB × AB ABAB O

Your combination is highlighted.

💉 Blood Type Compatibility

Blood type determines who you can safely donate to and receive blood from. This is important for transfusions during pregnancy complications, cesarean deliveries, or emergencies.

O-
Gives to Everyone
Gets from O-
O+
Gives to O+, A+, B+, AB+
Gets from O+, O-
A-
Gives to A-, A+, AB-, AB+
Gets from A-, O-
A+
Gives to A+, AB+
Gets from A+, A-, O+, O-
B-
Gives to B-, B+, AB-, AB+
Gets from B-, O-
B+
Gives to B+, AB+
Gets from B+, B-, O+, O-
AB-
Gives to AB-, AB+
Gets from AB-, A-, B-, O-
AB+
Gives to AB+
Gets from Everyone

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🔗 Related Tools

🔍 Reverse Blood Type 🗓️ Conception Calculator 🐉 Chinese Gender Predictor 🧬 Down Syndrome Risk

This calculator uses standard Mendelian genetics to predict possible baby blood types. It provides probability ranges, not certainty, because some parent genotypes cannot be determined from phenotype alone. This tool is for educational purposes and is not a substitute for medical blood typing. Rare variants like the Bombay phenotype or other genetic factors are not included. Consult your healthcare provider for actual blood type testing and Rh incompatibility management.