Bet Payout Calculator: Returns, Net Profit and Implied Probability
The basic maths of a single bet: how much the bookmaker pays out if it wins, how much of that is profit and how much is simply your own stake coming back, what is left after commission if any is charged, and what probability the odds imply.
The last figure matters more than the first ones. The payout tells you what happens if the bet wins; the implied probability tells you how often it has to win for the bet not to lose money.
Work out the payout on a bet
Enter decimal odds, as shown on the bookmaker's site. Leave commission at zero if nothing is deducted from winnings; betting exchanges and some crypto platforms do charge it, and they take it from the profit.
Inputs
Results update automatically. Percentages do not depend on the currency.
Result
Fill in the fields and the result appears automatically.
How it is calculated
Payout = stake × oddsNet profit = payout − stake = stake × (odds − 1)After commission = stake + profit × (1 − commission)Implied probability = 1 / oddsA 100 stake at 2.50 pays out 250, a profit of 150. Of that 250, one hundred is your own money coming back; only 150 is actually won. A 5% commission on profit cuts it to 142.50 and the payout to 242.50; no commission is taken from the stake.
Implied probability is the share of bets that have to win for a run of identical bets to break even: at 2.50 that is 40%. It is inflated by the bookmaker's margin, so the fair probability is always slightly lower. Commission raises the break-even point: with 5% deducted at 2.50 you already need to win 41.24% of the time, because a win pays less while a loss costs the same. To see how much margin a particular market carries, use the bookmaker margin calculator.
Examples
| Stake | Odds | Payout | Net profit | Implied probability | Result of 100 bets winning 5 points below break-even |
|---|---|---|---|---|---|
| 100 | 1.50 | 150 | 50 | 66.67% | −750 |
| 100 | 2.50 | 250 | 150 | 40.00% | −1,250 |
| 100 | 5.00 | 500 | 400 | 20.00% | −2,500 |
| 100, 5% commission | 2.00 | 195 | 95 | 50.00% | −1,225 |
The last column puts a price on the same misjudgement at different odds: winning five percentage points less often than break-even costs 750 at 1.50 and 2,500 at 5.00. A big payout is not riskier in itself than a small one, but every mistake made at long odds costs more.
Reading the result
Payout
Everything the bookmaker hands back if the bet wins, stake included. It is the big number on the bet slip, and people remember it as their "winnings" — which it isn't.
Net profit
Payout minus stake. The only figure you can weigh against the loss if the bet fails: 100 at 1.50 means risking 100 to win 50.
Implied probability
How often the outcome has to come in for the bet not to lose money. If your own estimate is below this number, the bet loses money whatever the payout.
The calculator does not tell you how much to stake. That depends on your bankroll and how long a losing run you can absorb, which is a separate calculation from the payout.
Related calculators
Accumulator calculator
Combined odds, payout and the chance of a multi-selection slip landing.
Odds → probability
Convert odds into percentages, with and without the margin.
All calculators
The full set of tools: odds, markets, bonuses, bankroll and limits.
Frequently asked questions
What does a bet payout calculator show?
The payout, net profit, the result after commission, the loss if the bet fails, the implied probability and the win rate at which a run of identical bets breaks even.
Are payout and profit the same thing?
No. The payout includes your stake coming back; profit is what you get on top of it. A 100 stake at 2.50 pays out 250, a profit of 150.
What goes in the commission field?
The percentage deducted from winnings: betting exchanges usually take 2–5% of net profit, most bookmakers take nothing. If the deduction applies to the whole payout rather than the profit, your result will be lower than shown; such rules are rare and the operator spells them out separately.
Why is the break-even point higher than the implied probability when commission applies?
Because a win pays less while a loss costs the same. At 2.00 with no commission you need to win 50% of the time; with 5% commission it is 51.28%.
Does the calculator predict the bet?
No. It works out the consequences of the numbers you enter and knows nothing about the event. Implied probability is the bookmaker's price, not the chance of the outcome.