Expected Value Without the Jargon

intermediate 2 Min. LesezeitAktualisiert 21.6.2026

Combine probability and net results into one honest long-run average.

List every possible net result

EV includes both positive and negative net changes. Returning a stake is not the same as winning that amount as profit.

Multiply every net result by its chance, then add them. The result is an average over repetition, not a forecast for one round.

Expected value calculator

Win chance45%

Payout on win×2.0

Expected return

90%

House edge

10%

Over time this returns less than you wager — that gap is the house edge. Great for free-coin fun, never a way to profit.

Expected return = win chance × payout. Below 100% means the game keeps the difference over the long run, regardless of short-term luck.

Loading demo…

Finished reading? Mark it complete to earn coins & XP and track your progress.