Calculators

Betting maths on the numbers you enter. Amounts are in pounds (£).

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Expected value calculator

Odds

Your probability

Stake

Expected profit: +£12.50
Edge: +12.50%
Fair odds at your probability: 2.22

Profit if it wins: +£150.00
Result if it loses: -£100.00
Probability the odds imply: 40.0%

How this works

Expected value is what a bet returns on average if it could be repeated many times at the chance you enter: EV = stake × (probability × odds − 1). It is only as good as your probability; the result of any single bet is either the full profit or the full stake lost.

Results are a record of maths on the numbers you enter, not advice.