# Odds Calculator – Convert Odds & Calculate Implied Win Probability For Sports Bets

## Odds and Probabilities: Odds Formats and Implied Probability

There are three main odds representations used by most bookmakers and betting websites. Let’s run through some examples of **Decimal odds, Fractional Odds and American Odds**:

**Fractional Odds**- This odds format is used primarily in the United Kingdom & Republic of Ireland. Fractional odds quote the potential
**profit**which can be made on a bet if it wins, relative to the stake. *For example if $500 is bet at odds of 2/1 the potential profit is $1000 ($500 * 2) and the total returned is $1500 ($1000 plus the $500 stake).***Decimal Odds**- Decimal betting odds reflect the potential
**return**if a bet succeeds, relative to the stake placed. *For example if £$ is bet at odds of 3.0 the total returned is $15 ($5 * 3)- and the potential profit is £10 ($5 * 3 minus the initial $5 stake).***American Odds**-
- Positive American Odds: These odds reflect how much you win on a single $100 bet.
*For example, a positive American odds @ +110 would win $110 for a $100 wager.* - Negative American Odds: The odds indicate how much you must bet in order to make $100 profit. For example a wager on a team with American odds of -90 would win $100 on a $90 bet.

- Positive American Odds: These odds reflect how much you win on a single $100 bet.

**Implied Probability**- Odds correlate to probability e.g a 2/1 bet is expected to win twice in every 3 attempts, hence the probability is 33.33%.

## Sports Betting Odds Calculator / Converter

Use our lookup table to convert odds and to calculate the implied win probability on your sports bets.

Decimal | Fractional | American | Probability |
---|---|---|---|

1 | 0/∞ | -∞ | 100% |

1.01 | 1/100 | -10000 | 99.01% |

1.02 | 1/50 | -5000 | 98.04% |

1.03 | 1/33 | -3333 | 97.09% |

1.04 | 1/25 | -2500 | 96.15% |

1.05 | 1/20 | -2000 | 95.24% |

1.06 | 1/16 | -1667 | 94.34% |

1.07 | 1/14 | -1429 | 93.46% |

1.08 | 1/13 | -1250 | 92.59% |

1.09 | 1/11 | -1111 | 91.74% |

1.1 | 1/10 | -1000 | 90.91% |

1.11 | 1/9 | -909 | 90.09% |

1.12 | 2/17 | -833 | 89.29% |

1.13 | 2/15 | -769 | 88.5% |

1.14 | 1/7 | -714 | 87.72% |

1.15 | 2/13 | -667 | 86.96% |

1.16 | 2/13 | -625 | 86.21% |

1.17 | 1/6 | -588 | 85.47% |

1.18 | 2/11 | -556 | 84.75% |

1.19 | 2/11 | -526 | 84.03% |

1.2 | 1/5 | -500 | 83.33% |

1.22 | 2/9 | -455 | 81.97% |

1.25 | 1/4 | -400 | 80% |

1.28 | 2/7 | -357 | 78.13% |

1.3 | 3/10 | -333 | 76.92% |

1.33 | 1/3 | -303 | 75.19% |

1.35 | 7/20 | -286 | 74.07% |

1.36 | 4/11 | -278 | 73.53% |

1.4 | 2/5 | -250 | 71.43% |

1.44 | 4/9 | -227 | 69.44% |

1.45 | 9/20 | -222 | 68.97% |

1.47 | 8/17 | -213 | 68.03% |

1.5 | 1/2 | -200 | 66.67% |

1.53 | 8/15 | -189 | 65.36% |

1.57 | 4/7 | -175 | 63.69% |

1.6 | 3/5 | -167 | 62.5% |

1.62 | 8/13 | -161 | 61.73% |

1.63 | 5/8 | -159 | 61.35% |

1.66 | 2/3 | -152 | 60.24% |

1.7 | 7/10 | -143 | 58.82% |

1.72 | 8/11 | -139 | 58.14% |

1.8 | 4/5 | -125 | 55.56% |

1.83 | 5/6 | -120 | 54.64% |

1.9 | 9/10 | -111 | 52.63% |

1.91 | 10/11 | -110 | 52.36% |

1.95 | 20/21 | -105 | 51.28% |

2 | 1/1 | +/-100 | 50% |

2.05 | 21/20 | +105 | 48.78% |

2.1 | 11/10 | +110 | 47.62% |

2.2 | 6/5 | +120 | 45.45% |

2.25 | 5/4 | +125 | 44.44% |

2.3 | 13/10 | +130 | 43.48% |

2.38 | 11/8 | +138 | 42.02% |

2.4 | 7/5 | +140 | 41.67% |

2.5 | 3/2 | +150 | 40% |

2.6 | 8/5 | +160 | 38.46% |

2.63 | 13/8 | +163 | 38.02% |

2.7 | 17/10 | +170 | 37.04% |

2.75 | 7/4 | +175 | 36.36% |

2.8 | 9/5 | +180 | 35.71% |

2.88 | 15/8 | +188 | 34.72% |

2.9 | 19/10 | +190 | 34.48% |

3 | 2/1 | +200 | 33.33% |

3.1 | 21/10 | +210 | 32.26% |

3.13 | 17/8 | +213 | 31.95% |

3.2 | 11/5 | +220 | 31.25% |

3.25 | 9/4 | +225 | 30.77% |

3.3 | 23/10 | +230 | 30.3% |

3.38 | 19/8 | +238 | 29.59% |

3.4 | 12/5 | +240 | 29.41% |

3.5 | 5/2 | +250 | 28.57% |

3.6 | 13/5 | +260 | 27.78% |

3.75 | 11/4 | +275 | 26.67% |

3.8 | 14/5 | +280 | 26.32% |

4 | 3/1 | +300 | 25% |

4.2 | 16/5 | +320 | 23.81% |

4.33 | 10/3 | +333 | 23.09% |

4.5 | 7/2 | +350 | 22.22% |

4.6 | 18/5 | +360 | 21.74% |

5 | 4/1 | +400 | 20% |

5.5 | 9/2 | +450 | 18.18% |

6 | 5/1 | +500 | 16.67% |

6.5 | 11/2 | +550 | 15.38% |

7 | 6/1 | +600 | 14.29% |

7.5 | 13/2 | +650 | 13.33% |

8 | 7/1 | +700 | 12.5% |

8.5 | 15/2 | +750 | 11.76% |

9 | 8/1 | +800 | 11.11% |

9.5 | 17/2 | +850 | 10.53% |

10 | 9/1 | +900 | 10% |

11 | 10/1 | +1000 | 9.09% |

20 | 19/1 | +1900 | 5% |

30 | 30/1 | +2900 | 3.33% |

40 | 40/1 | +3900 | 2.5% |

50 | 50/1 | +4900 | 2% |

60 | 60/1 | +5900 | 1.67% |

70 | 70/1 | +6900 | 1.43% |

80 | 80/1 | +7900 | 1.25% |

90 | 90/1 | +8900 | 1.11% |

100 | 100/1 | +9900 | 1% |

1000 | 1000/1 | +99900 | 0.1% |