Blood Type Inheritance Calculator

• Free blood type inheritance calculator with three modes: predict a child's blood type, verify parent-child relationship, and reverse-infer the parents' blood types
• Analyzes both the ABO blood type and the Rh factor, giving genotypes and probabilities based on Mendelian inheritance
• Results include inheritance explanations and a Punnett square for clarity

1. Open the page — no download or installation needed
2. Choose a mode, then select the parents' (and child's) ABO type and Rh factor
3. Click "Calculate" to see possible blood types, probabilities, and the genetic analysis
4. Click "Copy Result" to save the outcome with one click

• Completely free, no sign-up required
• All calculations run locally in your browser — your data never leaves your device
• For reference only; not a substitute for professional medical advice. Consult a doctor if unsure

Free blood type inheritance pattern calculator, predicts possible blood types of children based on parents' blood types, or verifies parent-child relationships. Supports ABO blood type and Rh factor genetic analysis, scientifically accurate.

Open the page — no download or installation needed Choose a mode, then select the parents' (and child's) ABO type and Rh factor Click "Calculate" to see possible blood types, probabilities, and the genetic analysis Click "Copy Result" to save the outcome with one click

Completely free, no sign-up required All calculations run locally in your browser — your data never leaves your device For reference only; not a substitute for professional medical advice. Consult a doctor if unsure

Yes, Blood Type Inheritance Calculator is completely free. No download or installation required — it runs right in your browser.