- Choose an Odds Format and enter the Bet Odds.
- Enter your Stake.
- Read the output. Odds in every format plus Potential Payout and Potential Profit.
Bet Calculator
A bet calculator that finds the payout on any sports wager. Enter your stake and the American odds to see the profit, total return, and implied probability.
How to Use This Calculator
What is a bet calculator?
A bet calculator computes the potential payout on a sports betting wager. Inputs are the stake and the American odds. Outputs are the potential profit, the total return (stake plus profit), and the implied probability the sportsbook is pricing into the bet.
Every bet has two key numbers: the stake (what is risked) and the potential profit (what is won on top of the stake). The total return on a winning bet is stake plus profit. American odds tell the bettor both numbers directly: positive odds show profit per $100 staked, negative odds show stake required to win $100.
Formulas
\[
\begin{aligned}
\text{Profit (positive odds)} &= \text{Stake} \times \dfrac{\strut \text{American Odds}}{\strut 100} \\[6pt]
\text{Profit (negative odds)} &= \text{Stake} \times \dfrac{\strut 100}{\strut -\text{American Odds}} \\[6pt]
\text{Total Return} &= \text{Stake} + \text{Profit}
\end{aligned}
\]
Worked example
A $50 bet at +180.
\[
\begin{aligned}
\text{Profit} &= 50 \times \dfrac{\strut 180}{\strut 100} = \$90 \\[6pt]
\text{Total Return} &= \$50 + \$90 = \$140 \\[6pt]
\text{Implied Probability} &= \dfrac{\strut 100}{\strut (180 + 100)} = 35.71\%
\end{aligned}
\]
The same $50 bet at -180.
\[
\begin{aligned}
\text{Profit} &= 50 \times \dfrac{\strut 100}{\strut 180} = \$27.78 \\[6pt]
\text{Total Return} &= \$50 + \$27.78 = \$77.78 \\[6pt]
\text{Implied Probability} &= \dfrac{\strut 180}{\strut 280} = 64.29\%
\end{aligned}
\]
Why bet math matters for sports bettors
Before placing any bet, the bettor should know exactly what is being risked and what stands to be won. Sportsbook bet slips show these numbers automatically, but verifying the math independently is good practice, especially on large or unusual bets.
This is the simplest calculator in the DarkHorse Odds calculator library. For bets that involve hedging, promotions, or correlation, use the calculator that fits the situation.
For a complete walkthrough of how to read odds, read our How to Read Sportsbooks Odds guide. Pair this calculator with the Parlay Calculator for multi-leg bets.
Common mistakes
- Confusing payout and profit. Payout includes the stake. Profit does not. Sportsbook bet slips usually display both. Look carefully at which is shown.
- Mixing odds formats. Always pick one format and stick with it for a given calculation. Mixing American and decimal in the same formula produces wrong numbers.
- Ignoring promotional terms. If the bet is placed with promotional currency (bonus bet, site credit), the payout differs from a regular cash bet. See the Bonus Bet Calculator and Site Credit guide for those scenarios.
- Forgetting about pushes. A push (tie) returns the stake but no profit. Spreads and totals can push; moneylines generally cannot.
Frequently Asked Questions
What is a bet calculator?
A bet calculator finds the potential payout on a sports wager. Enter the stake and the American odds to see the profit on a winning bet, the total return (stake plus profit), and the implied probability the sportsbook is pricing in.
How do you calculate a sports betting payout?
For positive American odds, multiply the stake by the odds divided by 100 to get the profit. For negative American odds, multiply the stake by 100 divided by the absolute value of the odds. Add the stake back to get the total return.
\[
\begin{aligned}
\text{Total Return} &= \text{Stake} + \text{Profit}
\end{aligned}
\]
A $100 bet at +150 returns $100 + $150 = $250 total.
What does +200 mean in betting?
American odds of +200 mean a $100 bet returns $200 in profit on a winning outcome ($300 total return). The implied probability is 33.33%. The higher the positive number, the bigger the potential profit and the lower the implied probability.
What does -150 mean in betting?
American odds of -150 mean a bettor must risk $150 to win $100 in profit. Total return on a winning bet is $250. The implied probability is 60%. The larger the negative number, the bigger the favorite.
How do I know if a bet is a good price?
Compare the implied probability the sportsbook is pricing to an estimate of the true probability. If the estimate exceeds the implied probability, the bet has positive expected value. Use the Expected Value Calculator to do the math.
Does this calculator include the vig?
Yes. The implied probability shown by this calculator is the raw implied probability calculated directly from the odds, which includes the sportsbook's commission. To strip the vig out, use the No Vig Calculator.
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