Sports betting yield calculator
Enter your profit and total staked to get your yield. Add your starting bank if you also want to see ROI.
What yield is
Yield is the percentage of profit you make on every euro staked. It is the most widely used measure for comparing results because it does not depend on how much money you move: 3% means the same whether you bet €5 or €500.
It matters because profit in euros, on its own, is misleading. Winning €200 sounds good, but it is not the same to win it after staking €2,000 as after staking €40,000. Yield puts both on the same scale.
The formula
Yield = profit ÷ total staked × 100
Profit is what you collected minus what you staked, and total staked is the sum of all your stakes, not your bank. Void bets count on neither side, because your money was returned.
ROI = profit ÷ starting bank × 100
Many people use ROI and yield as synonyms. We separate them here because they answer different questions: yield measures the quality of your bets, and ROI measures how much your bank has grown. Whenever you see “ROI” somewhere, check what it is calculated on.
A worked example
You start with a €1,000 bank and place 300 bets of €20. You have staked €6,000 in total and finish with €180 profit.
- Yield: 180 ÷ 6,000 = 3%
- ROI on bank: 180 ÷ 1,000 = 18%
Both figures are correct. The 18% is high because the same money was staked several times, which is why yield is the number to use when comparing yourself with other bettors.
Common mistakes
- Dividing by the bank. This is the most frequent mistake and it inflates the figure. If you divide by the bank you are calculating ROI, not yield.
- Forgetting lost bets. Sums done from memory tend to remember wins better. Calculate from the full history, not from what you recall.
- Drawing conclusions from few bets. Over 50 bets, a 15% yield proves nothing. It could be pure variance. We explain this in how to tell if a tipster is profitable.
- Mixing markets. An overall yield can hide the fact that you win at tennis and lose on football accumulators. It pays to break it down.
What figure is reasonable
No number guarantees anything, but there is a reference point: bookmakers keep a margin on every market, so the average bettor has a negative yield in the long run. If someone advertises a sustained double-digit yield over thousands of bets, ask to see the full history. You can see how much the bookmaker keeps with the implied probability calculator.
If you prefer to keep the numbers in a sheet, there is a free Excel template with these formulas. And if your history is at a bookmaker, the import guides explain how to calculate it across all your bets at once. To go deeper, read what yield is in betting.
Frequently asked questions
What is the difference between yield and ROI?
Yield divides profit by total staked, and ROI, as we use it here, divides it by the starting bank. Some websites call ROI what we call yield, so check the formula before comparing figures.
Is a 5% yield good?
It is a hard figure to maintain in the long run, but it only means something with a large sample. Over 100 bets it could be chance; over several thousand bets at normal odds it is much more solid.
Do void bets count towards yield?
No. A void bet returns your stake, so nothing was at risk and it should add to neither profit nor total staked.
Can yield be negative?
Yes, and that is the most common case. A yield of -6% means you lose an average of 6 cents on every euro staked.