+118 Odds Explained
- Decimal
- 2.18
- American
- +118
- Fractional
- 59/50
- Implied probability
- 45.87%
- Polymarket
- 46¢
- $100 wins
- 118.00
- American
- +118
- Fractional
- 59/50
- Implied probability
- 45.87%
- Polymarket
- 46¢
- Profit
- 118.00
- Total return
- 218.00
2.180 decimal, +118 American, 45.87% implied probability
American odds of +118 mean
a 100 stake wins 118
. In decimal notation that is 2.18, in fractional notation 59/50, and the implied probability is 45.87%. On a prediction market the same price is a 46¢ share.
What +118 pays
A 100 stake at +118 returns 218.00 in total: your 100 back plus 118.00 profit. To win exactly 100 you would stake 84.75. The table covers the stakes people actually use.
| Stake | Profit | Total return |
|---|---|---|
| 10 | 11.80 | 21.80 |
| 25 | 29.50 | 54.50 |
| 50 | 59.00 | 109.00 |
| 100 | 118.00 | 218.00 |
| 500 | 590.00 | 1,090.00 |
| 1,000 | 1,180.00 | 2,180.00 |
Break-even and long-run results
The implied probability of +118 is 45.87%, and that number is also the break-even win rate: win more often than 45.87% of the time at this price and you profit in the long run, win less often and you lose. The table shows the return on stake at a few win rates, including the break-even rate itself.
| Win rate | Return on stake |
|---|---|
| 46% | 0.3% |
| 50% | 9.0% |
| 55% | 19.9% |
| 60% | 30.8% |
| 65% | 41.7% |
An implied probability of 45.87% makes +118 a near-even price. This is the natural home of handicap and over/under markets, where the bookmaker adjusts the line rather than the price and both sides are quoted a shade under 2.00 decimal.
The vig at +118
If both sides of a two-way market were priced at +118, the implied probabilities would add up to -8.26% above 100%. That excess is the overround, or vig; as a share of stakes it is a -9.00% margin for the bookmaker. Removing it leaves fair odds of 2.00 decimal ( +100) on each side. Use the devig calculator to do the same for any market.
+118 on a betting exchange
Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission +118 is worth 2.156 decimal (+116 American); at 5% it drops to 2.121 (+112). Those are the bookmaker prices you would need to beat.
| Commission | Effective decimal | Effective American | Break-even |
|---|---|---|---|
| 2% | 2.156 | +116 | 46.37% |
| 5% | 2.121 | +112 | 47.15% |
Same price in other formats
Same price in other formats
Nearby prices
Nearby prices
Frequently asked questions
What does +118 mean in betting?
+118 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At +118 the implied probability is 45.87% and a 100 stake returns 218.00.
What is +118 in decimal odds?
+118 converts to 2.180 in decimal odds (usually shown as 2.18). Decimal odds are the total return per unit staked, so multiply your stake by 2.180 to get the return.
What is +118 as a fraction?
+118 is 59/50 in fractional odds, the traditional bookmaker notation where the top number is profit and the bottom number is stake.
How much do I win on a 100 bet at +118?
A 100 stake at +118 wins 118.00 in profit and returns 218.00 including the stake. To win exactly 100 you would stake 84.75.
What win rate do I need at +118?
The break-even win rate equals the implied probability, 45.87%. Winning more often than that at this price is profitable over the long run; winning less often loses money.