Monty Hall Calculator

Analyze win probability for the Monty Hall problem.

The Problem

You're on a game show with 3 doors. Behind one is a car; behind the others, goats. You pick a door. The host, who knows what's behind each door, opens another door showing a goat. Should you switch to the remaining door or stay with your choice?

Stay Strategy

1/3

33.33% win rate

Switch Strategy

2/3

66.67% win rate

Enter your values above and tap Run Simulation to see the result.

Your Results
Stay Wins
Switch Wins