Expected Value Calculator

Enter probability/payout pairs. Probabilities must sum to 1.

ProbabilityPayout
Σ probability
Expected value

About this tool

Expected Value Calculator is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.

Category: Probability & Gambling. Browse more Probability & Gambling tools.