Bet Return Calculator: Calculate Your Winnings for Free

Last Updated on 02/23/2026
Fact checked by: Meghan

Our bet return calculator gives you a crucial piece of information - how much you stand to win. As well as your expected return, this calculator will also show your projected profit.

To use it, simply enter the odds in your preferred format - American, decimal, or fractional - and the amount you want to bet. Then click “Calculate” and you’ll get the results right away. In addition to the vital figures, you’ll also see the implied probability for your bet displayed as a percentage.

Calculate your Bet Return with our free tool

ROI calculator

Odds Format
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How to use the sports betting ROI calculator

The purpose of our sports betting ROI calculator is simple - it is designed to give you the expected return and profit for your bet, based on the odds and your stake. Additionally, it will display the implied probability percentage, which tells you how much chance your bet has of winning.

When using the calculator, you can enter the odds in American, decimal, and fractional odds, but whichever you opt for, the calculator will display all three formats. For example, if you enter the odds as American, the calculator will display them as decimal and fractional odds too.

You can only use the bet return calculator for a single bets, it will not multiply the odds together for parlay or combo bets. However, we do have a calculator for that here at PromoGuy, which you can find further down this page.

Inputs

To use our bet return calculator, you just need to enter the following two values:

  • Stake - The total amount of money that you wish to bet
  • Odds - The odds offered by the sportsbook (enter as American, decimal, or fractional)

Outputs

After you have entered the necessary data, the calculator will give you the following results:

  • Total return - The full amount of money you will get back if your bet wins (stake + profit)
  • Profit - The amount of your return that is profit (return - stake)
  • Implied probability - The chance of your selection winning shown as a percentage

Step-by-step guide

Ready to give our bet return calculator a shot? Here’s what you need to do:

  1. Browse for an event/wager
  2. Enter your bet amount and the odds offered for your chosen bet
  3. Click “Calculate” to get your results
  4. Find out instantly the expected returns and implied probability of your bet
  5. Use these results to decide if the bet is worth your while

Example - The betting profit calculator in practice

So you can see how this calculator works in action, we’ve used boxing betting as an example below. In the Anthony Joshua vs Francis Ngannou fight, Anthony Joshua to win by TKO is offered at odds of +110 at DraftKings Sportsbook.

Hypothetically, if you were thinking of backing this with a $150 stake, here’s how it would work:

Total stake:$150
American odds:+110
Decimal odds:2.10
Fractional odds:11/10
Implied probability:47.62%
Total returns:$315
Winnings (profit):$165

Here, you can see that your total returns were you to win this bet would be $315, with a $165 profit. The implied probability is 47.62%, however, this is a direct conversion of the bookie's odds - the fair probability is different.

To get the fair odds and real implied probability, we recommend using our no-vig calculator, which you can access directly from this page.

Betting returns explained

Your return, or ROI (Return On Investment) is probably the simplest and most important thing in betting. It is the figure that shows you how much one of the best betting apps in the US will pay out if your bet wins.

However, it’s important to remember that your stake is included in the total return figure. So our bet return calculator also shows your potential profit separately.

Implied probability

As well as how much you might profit, it’s also important to know if your bet is likely to be successful. That’s why the implied probability percentage is also something you need to pay attention to, as it shows how much chance there is of your bet winning.

Striking a balance between expected profit and win probability

The return and profit figures for high-odds bets will be mouthwatering based on your stake. However, the implied probability will be much lower, which means a greater risk of losing than winning.

1. Example - High expected returns with high risk

To use the Anthony Joshua vs Francis Ngannou fight as an example again, the draw is offered at +1800 odds. With a $100 stake, you would get the following output:

  • Returns: $1,900
  • Winnings: $1,800
  • Implied probability: 5.26%

As you can see, the potential winnings are massive compared to your stake, but you only have a 5.26% chance of winning. This makes it a very risky bet, which in all likelihood will lose.

2. Example - Low expected returns with low-risk

At the other end of the scale, let’s take a look at $100 on Joshua to win outright at -400 using our bet return calculator:

  • Returns: $125
  • Winnings: $25
  • Implied probability: 80%

With this bet, you have an 80% chance of winning, but only stand to gain a profit of $25 with a $100 outlay, which is not that great in terms of value. At the end of the day, you need to strike a balance between longshot Hail Mary bets and near-certainties with little value.

Why this betting ROI calculator is useful

It almost goes without saying that calculating your potential returns before you place a bet is essential when it comes to sports betting. However, that’s not all our bet return calculator is capable of doing. Below, we have highlighted the top five ways that this tool can enhance your overall betting experience:

It’s quick and easy to use

Doing the math in your head is difficult and not much fun, if we’re being honest. This calculator does it for you instantly to make life easier. 

Expected profits

As we said above, the most important thing in betting is calculating your expected return and profit. Above all else, these figures give you a good idea if the bet you are looking at is worthwhile based on your stake and the odds available.

Know your chance of winning

As well as knowing how much you stand to win, our bet return calculator also shows you how much chance there is of your bet being successful. This combination of implied probability and expected profit quickly shows you the true viability of any bet.

Odds conversion

An added extra that you get when using this calculator is odds conversion. Though it’s not overly important, it can still be useful to see the odds displayed in the format that you are most familiar with.

Use it with our other betting calculators

This calculator is an essential starting point for any single market wager that you wish to place, but you can also use it in combination with our other calculators. For instance, if you want to see the fair odds and implied probability for a bet, instead of the sportsbook odds, you can use our no vig calculator.

What other calculators do we have here at PromoGuy US?

The bet return calculator is just one of many tools that we have to help enhance your overall sports betting experience here at PromoGuy US. In total, we have 15 different bet calculators to help you with odds, probabilities, bet strategies, parlays, and more. You can take a look below and try them out for yourself right now:

All of our free betting calculators at the PromoGuy

Bet profit calculator - Conclusion

That sums up everything that you need to know about our bet profit calculator. All you need to do now is find the odds for your chosen event, decide on your stake, and then enter those into the calculator.

Once you have the calculated result, you can make an informed decision as to whether or not the bet is worthwhile. To get the most out of this calculator, we recommend using it in conjunction with some of our other tools, which are all freely available to you right here on this page.

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Bet return calculator FAQ

🤔 How much will I get back from my bet?

That depends on how much you bet and what the odds are. To calculate this, you can use our bet return calculator here at PromoGuy.us - just enter your stake and odds, and then we’ll do the math for you.

⚡ How much do I get if I bet $100 at +150 odds?

If you were to bet $100 at odds of +150, you would get total returns of $250, with a $150 profit. The +150 figure in American odds shows your expected profit based on a 100 unit bet.

✨ How do you calculate your returns on a bet?

To calculate your return, it’s easiest to convert the odds into decimal format first, then you can simply multiply your stake by the odds. To calculate your profit, just subtract your stake from the total return. Alternatively, you can use our bet calculator here at PromoGuy.us and get instant and accurate results without the hassle.

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