Venn Diagram Calculator

Calculate exclusive region values for 2-set or 3-set Venn diagrams using inclusion-exclusion principle.

Set A Size

Set B Size

Set C Size (0 for 2-set)

A ∩ B Overlap

A ∩ C Overlap

B ∩ C Overlap

A ∩ B ∩ C Overlap

Tab to move between fields

A Only

B Only

Union Total

C Only0

A ∩ B (excl. C)10

A ∩ C (excl. B)0

B ∩ C (excl. A)0

A ∩ B ∩ C0

How to Use This Calculator

Enter the total population or universe size.
Input the size of Set A, Set B, and their intersection.
Review the exclusive regions: A only, B only, both A and B, and neither.
Calculate percentages of the universe in each region for proportion analysis.
Use the output to solve inclusion-exclusion problems in probability and combinatorics.

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