Among Us Impostor Odds Calculator
Free Among Us impostor odds calculator using binomial probability. Compute your chances of being impostor or crewmate with distribution charts and breakdowns.
About This Calculator
The Among Us Impostor Odds Calculator helps players determine the probability of being assigned the impostor or crewmate role over multiple games. Whether you are a seasoned detective on The Skeld or a chaos-loving impostor on Polus, understanding the math behind role assignment can help you set expectations and plan your sessions.
This calculator uses the binomial probability formula: P(n,k) = C(n,k) × p^k × (1-p)^(n-k), where p is the per-game probability of being the chosen role (impostors divided by players for impostor odds, or crewmates divided by players for crewmate odds), n is the number of games played, and k is the number of times you want to be that role. The combination C(n,k) counts how many ways k successes can occur in n trials. This is the standard statistical model for repeated independent events with two possible outcomes.
You can calculate odds for exactly X times, at most X times, at least X times, more than X times, or less than X times. For example, in a standard 8-player game with 2 impostors, your chance of being the impostor in any single game is 25%. Over 10 games, the probability of being the impostor at least 3 times is approximately 47.4%.
Regional Notes
Among Us is played worldwide with standard game settings regardless of region. The calculator works for all versions of the game (PC, mobile, Nintendo Switch) and all maps (The Skeld, Mira HQ, Polus, The Airship, The Fungle). Common game configurations include 8 players with 2 impostors (most popular for quick games), 10 players with 2-3 impostors (balanced for larger groups), and 6-7 players with 1-2 impostors (best for smaller friend groups). The maximum supported player count is 15 (with up to 3 impostors).
Frequently Asked Questions
What are the chances of being the impostor in Among Us?
The chance of being the impostor in a single Among Us game equals the number of impostors divided by the total number of players. For a standard 8-player game with 2 impostors, you have a 25% chance per game. This calculator uses binomial probability to compute your odds across multiple games.
How does the Among Us Impostor Odds Calculator work?
Enter the number of games you plan to play, the number of impostors and players per game, and your desired role (impostor or crewmate). Choose a probability mode (exactly X times, at most X times, etc.) and specify the value of X. The calculator uses the binomial probability formula P(n,k) = C(n,k) × p^k × (1-p)^(n-k) to compute your odds.
What is binomial probability in Among Us?
Binomial probability models the chance of a specific outcome occurring a certain number of times across repeated independent trials. In Among Us, each game is a trial: you are either the impostor or a crewmate. The probability of being the impostor stays constant each game, making binomial probability the perfect tool for calculating your odds over a session.
How many players and impostors are typical in Among Us?
Among Us supports 4 to 15 players. The most common configurations are 8 players with 2 impostors (25% impostor chance) and 10 players with 2 or 3 impostors (20-30% impostor chance). The optimal impostor count is roughly 20-25% of the total players for balanced gameplay.
Is this Among Us calculator free?
Yes, this Among Us impostor odds calculator is completely free to use with no registration required. You can calculate unlimited scenarios and share your results via URL.
Can I share my Among Us probability results?
Yes, the URL saves your inputs automatically so you can share your impostor probability calculation with friends or save it for later reference.
What does exactly X, at most X, and at least X mean?
Exactly X calculates the probability of being the impostor exactly X times out of N games. At most X sums probabilities for 0 up to X times. At least X sums probabilities for X up to N times. More Than X sums X+1 to N, and Less Than X sums 0 to X-1. This lets you ask questions like 'what are the odds I am impostor at least 3 times in 10 games?'
Can I calculate crewmate odds instead of impostor odds?
Yes, simply select Crewmate from the role dropdown. The calculator will compute the probability of being a crewmate instead of the impostor. The per-game crewmate chance is (players - impostors) / players.