Tools · Calculator

Bet Calculator

Return, net profit and expected loss for a stake on any bet.

Bet

Stake

stake

$10

if it wins

+$350 · $360 back

if it loses

−$10

probability of winning

2.70%

expected value / spin

−$0.27

expected loss / 100 spins

−$27.03

Reading the result

Staking $10 on a straight up returns $360 when it hits ($350 profit plus the stake) and loses $10 otherwise. Averaged over many spins that is a loss of $0.27 per spin, which is 2.70% of the stake.

Method and assumptions

Payout = stake × (36/n − 1). Expected value = p·W − (1−p)·stake = −stake/37. No la partage.