Probability and combinatorics Calculators: All 61 Tools
Every probability and combinatorics calculator on CalculatorHub, 61 in total, listed alphabetically. Each one is free, works in your browser with no signup, and shows the method it uses. Where a result depends on an external rate, standard or dataset, the supporting source is shown on the page with the date it was last checked. Prefer to search across all 6,718 calculators? Use the tool finder.
- Armor Damage Mitigation Calculator: Reduction Formula
- At Least One Probability Calculator: 1-(1-p)^n Formula
- Bayes Theorem Calculator: Posterior Probability
- Bernoulli Trial Calculator: Binomial Probability
- Beta Distribution Calculator: PDF, CDF, Mean
- Binomial Distribution Calculator: P(X=k), Mean and SD
- Birthday Collision Probability Calculator
- Birthday Paradox Calculator: Shared Birthday Probability
- Card Draw Probability Calculator: Hypergeometric Distribution
- Chi-Square Probability Calculator
- Coin Flip Streak Calculator: Probability of a Streak Length
- Combinations Calculator: C(n,r)
- Conditional Expectation Calculator
- Conditional Probability Calculator: P(A|B)
- Covariance to Correlation Calculator
- Crafting Success Rate Calculator: Multi-Step Success Product
- Craps Odds Calculator: Dice Sum Probability, EV
- Critical Hit Damage Calculator: Average DPS with Crits
- Damage Per Second Calculator: DPS with Crit and Attack Rate
- Dice Probability Calculator
- Dice Sum Probability Calculator: n Dice, Target Sum
- Elo Matchmaking Calculator: Expected Score from Rating Gap
- Expected Rolls to Target Calculator: Geometric
- Expected Trials to Success Calculator
- Expected Value Calculator
- Expected Value Gamble Calculator: Sum of p Times Payoff
- Exponential Distribution Calculator: PDF, CDF
- F-Distribution Probability Calculator
- Gacha Pity Probability Calculator: Cumulative Pull Odds
- Gambler's Ruin Calculator
- Gamblers Ruin Calculator: Ruin and Win Probability
- Gamma Distribution Calculator: PDF, CDF, Mean
- Geometric Distribution Calculator: PMF, CDF, Mean
- Hypergeometric Distribution Calculator: P(X=k)
- Inclusion-Exclusion Calculator
- Keno Odds Calculator: Hit Probability and Odds
- Log-Normal Distribution Calculator
- Lognormal Distribution Calculator: PDF, CDF
- Loot Drop Rate Calculator: Probability Over Multiple Tries
- Loot Expected Value Calculator: Weighted Item Values
- Markov Chain Steady State Calculator
- Multinomial Coefficient Calculator: n! / Product k!
- Normal Continuity Correction Calculator
- Odds to Probability Converter
- Permutations Calculator: P(n,r)
- Poisson Confidence Interval Calculator
- Poisson Distribution Calculator
- Poker Hand Odds Calculator: Outs and Hit Odds
- Probability Calculator: Basic Probability Computations
- Raffle Win Probability Calculator: Your Odds
- Random Encounter Rate Calculator: Probability Per Step Over N Steps
- Resource Economy Balance Calculator: Income vs Cost Rate
- Respawn Timer Calculator: Spawns Per Interval in Games
- Roulette Odds Calculator: Win Probability, Edge
- Spawn Rate Balance Calculator: Units Per Minute Target
- Student t Probability Calculator
- Tournament Bracket Odds Calculator: Probability to Advance
- Uniform Distribution Calculator: PDF, CDF, Mean
- Weibull Distribution Calculator: PDF, CDF, Mean
- Win Rate Confidence Calculator: CI on Win Proportion
- XP Leveling Curve Calculator: XP to Next Level by Formula