ToolBoxy
🧪

Blood Type Inheritance Calculator

New

혈액형 유전 · 자녀 혈액형 · 부모 혈액형 · blood type calculator · 혈액형 계산기

Blood Type Inheritance Calculator

Work out the blood types a child can have from the parents' blood types.

Possible child blood types
A
B
O
AB
Possible: A, B, O, AB

Based on the ABO blood group system. Actual probabilities depend on the parents' genotypes (AA/AO, etc.); this shows only which blood types are possible.

How to use

  1. 1

    Pick both parents' blood types.

  2. 2

    Possible child types show in green; impossible ones are struck through.

  3. 3

    Based on ABO inheritance; actual odds depend on the parents' genotypes.

FAQ

Is this tool free?

Yes — it is completely free to use, with no account or sign-up required.

What is this tool?

Find the blood types a child can have from the parents' blood types. Based on ABO inheritance (A and B are dominant, O recessive), pick both parents' types and it shows which child blood types are possible and which are impossible at a glance. Actual probabilities depend on the parents' genotypes (AA/AO, etc.), so this shows whether each type is possible. Everything runs in your browser, free with no install.