Venn Diagram Calculator
Calculate and visualize Venn diagram regions for 2 or 3 sets.
Configuration
Intersections
Venn Diagram Regions
A20
B15
10
Summary
Union (A ∪ B):45
% of A in intersection:33.3%
% of B in intersection:40.0%
Inclusion-Exclusion Principle
|A ∪ B| = |A| + |B| - |A ∩ B|
About Venn Diagrams
What is a Venn Diagram?
A Venn diagram uses overlapping circles to show relationships between sets. Each region represents elements that belong to specific combinations of sets.
Applications
Venn diagrams are used in probability, logic, statistics, and data analysis to visualize overlapping categories and calculate combined totals.
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Handbook of Mathematical Functions
by Abramowitz & Stegun
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.