Bet calculator
Enter the price and your stake — this shows the profit if it wins, the total coming back, and the win rate the price needs just to break even. American, decimal and fractional all work.
Read as American odds · −110 · 1.909 decimal
A $100.00 bet at −110 pays $90.91 profit, so $190.91 lands back in your account. The price needs this bet to win 52.4% of the time just to break even.
How a payout is worked out
Every odds format is the same number in different clothes. Convert to decimal, which is the total multiplier on your stake including the stake, then multiply:
- Plus price: 1 + odds ÷ 100. So +150 is 2.50.
- Minus price: 1 + 100 ÷ |odds|. So −110 is 1.909.
- Fractional: 1 + numerator ÷ denominator. So 10/11 is 1.909 — the same price as −110.
Then profit = stake × (decimal − 1) and total return = stake × decimal.
Profit versus total return
This is where most confusion lives, and it is worth being precise because books are inconsistent about it. Bet $100 at +150: your profit is $150.00 and your total return is $250.00, because the stake comes back too. Some slips show one, some the other. The calculator above shows both, labelled.
What minus and plus prices actually mean
A minus price is the amount you must risk to win $100. −250 means staking $250 to win $100 — on a $100 stake that scales to $40.00 profit. A plus price is what $100 wins outright, so +250 pays $250.00. Both meet at +100 — even money, which doubles your stake.
Payout table: what $100 returns at every common price
The break-even column is the one most people never look at. It is the win rate the price demands before you make a cent.
| Odds | Decimal | Profit | Total return | Break-even |
|---|---|---|---|---|
| −500 | 1.200 | $20.00 | $120.00 | 83.3% |
| −400 | 1.250 | $25.00 | $125.00 | 80.0% |
| −300 | 1.333 | $33.33 | $133.33 | 75.0% |
| −250 | 1.400 | $40.00 | $140.00 | 71.4% |
| −200 | 1.500 | $50.00 | $150.00 | 66.7% |
| −150 | 1.667 | $66.67 | $166.67 | 60.0% |
| −125 | 1.800 | $80.00 | $180.00 | 55.6% |
| −110 | 1.909 | $90.91 | $190.91 | 52.4% |
| +100 | 2.000 | $100.00 | $200.00 | 50.0% |
| +110 | 2.100 | $110.00 | $210.00 | 47.6% |
| +125 | 2.250 | $125.00 | $225.00 | 44.4% |
| +150 | 2.500 | $150.00 | $250.00 | 40.0% |
| +200 | 3.000 | $200.00 | $300.00 | 33.3% |
| +250 | 3.500 | $250.00 | $350.00 | 28.6% |
| +300 | 4.000 | $300.00 | $400.00 | 25.0% |
| +400 | 5.000 | $400.00 | $500.00 | 20.0% |
| +500 | 6.000 | $500.00 | $600.00 | 16.7% |
Why the same bet pays differently at different books
Nothing about the outcome changes, but the price does. The same bet at −105 rather than −115 pays $95.24 instead of $86.96 on $100 — about 9.5% more profit, every time it wins, for identical risk.
That is the least glamorous and most reliable edge in betting: it needs no opinion about the game at all. Our board compares every book we track on the same market, and the devig calculator works out what the bet is actually worth once the margin is stripped out.
What the payout does not tell you
A payout is arithmetic — it is always correct and it says nothing about whether the bet is good. Two prices can pay identically while one is worth taking and the other is not, because what matters is the payout measured against the true chance of the thing happening. That comparison is what expected value means, and it needs a view on the probability — which the EV calculator takes.
Terms used on this page
- Decimal odds — the total multiplier on your stake, stake included.
- Hold, or the vig — the margin a book builds into its prices.
- Fair odds — the price with no margin attached.
- Parlay — several bets combined, where the stake rides from leg to leg.
Questions
How do I work out a bet payout?
Convert the odds to decimal — the total multiplier on your stake — then multiply by your stake. Decimal odds of 1.91 on a $100 bet return $191, of which $91 is profit. American odds convert as 1 + odds/100 for a plus price, or 1 + 100/odds for a minus price.
What does −110 pay on $100?
$90.91 in profit, so $190.91 back in total. A minus price tells you what you must stake to win $100, so −110 means risking $110 to win $100 — scaled to a $100 stake that is $90.91.
What does +150 pay on $100?
$150 in profit, so $250 back in total. A plus price tells you what $100 wins, so the arithmetic is direct.
Does the payout include my stake?
Total return does; profit does not. If you bet $100 at +150 the profit is $150 and the total return is $250. Books differ in which one they show on the bet slip, which is the single most common source of confusion here.
What is the break-even chance shown next to the payout?
The probability the bet has to win for you to come out even at that price — one divided by the decimal odds. At −110 it is 52.4%, which is why beating a standard point spread long term is harder than a coin flip.
Can I enter decimal or fractional odds?
Yes. Type 1.91 for decimal or 10/11 for fractional and the calculator converts it. Because the formats overlap, it also tells you which one it read your input as — a bare "2" is decimal even money, since American odds never sit between −99 and +99.
Why do two books pay differently on the same bet?
Because each sets its own price and its own margin. The same outcome at −105 instead of −115 is roughly 4.5% more profit on every winning bet, and nothing about the bet itself changed. Comparing the price before you place it is the most reliable edge available to anyone.
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