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Odds Converter
Use our free Odds Converter to instantly switch between fractional, decimal, American (moneyline) odds and calculate implied probability. Ideal for punters, sports bettors, and more. Convert betting odds with our professional calculator used by thousands of users monthly.
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Odds Conversion Table
Complete reference table showing common odds conversions between fractional, decimal, American formats and implied probabilities.
| Fractional | Decimal | American | Implied Probability (%) |
|---|---|---|---|
| 1/10 | 1.10 | -1000 | 90.91% |
| 1/9 | 1.11 | -900 | 90.00% |
| 1/8 | 1.13 | -800 | 88.89% |
| 1/7 | 1.14 | -700 | 87.50% |
| 1/6 | 1.17 | -600 | 85.71% |
| 1/5 | 1.20 | -500 | 83.33% |
| 2/9 | 1.22 | -450 | 81.82% |
| 1/4 | 1.25 | -400 | 80.00% |
| 2/7 | 1.29 | -350 | 77.78% |
| 3/10 | 1.30 | -333 | 76.92% |
| 1/3 | 1.33 | -300 | 75.00% |
| 4/11 | 1.36 | -275 | 73.33% |
| 2/5 | 1.40 | -250 | 71.43% |
| 4/9 | 1.44 | -225 | 69.23% |
| 1/2 | 1.50 | -200 | 66.67% |
| 8/15 | 1.53 | -188 | 65.22% |
| 4/7 | 1.57 | -175 | 63.64% |
| 3/5 | 1.60 | -167 | 62.50% |
| 5/8 | 1.63 | -160 | 61.54% |
| 4/6 | 1.67 | -150 | 60.00% |
| 7/10 | 1.70 | -143 | 58.82% |
| 3/4 | 1.75 | -133 | 57.14% |
| 4/5 | 1.80 | -125 | 55.56% |
| 5/6 | 1.83 | -120 | 54.55% |
| 9/10 | 1.90 | -111 | 52.63% |
| 10/11 | 1.91 | -110 | 52.38% |
| 1/1 | 2.00 | +100 | 50.00% |
| 11/10 | 2.10 | +110 | 47.62% |
| 6/5 | 2.20 | +120 | 45.45% |
| 5/4 | 2.25 | +125 | 44.44% |
| 13/10 | 2.30 | +130 | 43.48% |
| 7/5 | 2.40 | +140 | 41.67% |
| 3/2 | 2.50 | +150 | 40.00% |
| 8/5 | 2.60 | +160 | 38.46% |
| 13/8 | 2.63 | +163 | 38.10% |
| 7/4 | 2.75 | +175 | 36.36% |
| 9/5 | 2.80 | +180 | 35.71% |
| 15/8 | 2.88 | +188 | 34.78% |
| 2/1 | 3.00 | +200 | 33.33% |
| 9/4 | 3.25 | +225 | 30.77% |
| 5/2 | 3.50 | +250 | 28.57% |
| 11/4 | 3.75 | +275 | 26.67% |
| 3/1 | 4.00 | +300 | 25.00% |
| 7/2 | 4.50 | +350 | 22.22% |
| 4/1 | 5.00 | +400 | 20.00% |
| 9/2 | 5.50 | +450 | 18.18% |
| 5/1 | 6.00 | +500 | 16.67% |
| 6/1 | 7.00 | +600 | 14.29% |
| 7/1 | 8.00 | +700 | 12.50% |
| 8/1 | 9.00 | +800 | 11.11% |
| 9/1 | 10.00 | +900 | 10.00% |
| 10/1 | 11.00 | +1000 | 9.09% |
What Are Betting Odds?
Understanding the different odds formats and how they represent the same betting opportunities in different ways.
Fractional odds show potential profit relative to your stake. For example, 3/2 odds mean you win £3 for every £2 wagered.
Decimal odds represent the total return including your stake. Multiply your stake by the decimal odds to get your total return.
Positive (+) odds show profit on $100 stake. Negative (-) odds show stake needed to win $100.
The percentage chance of an outcome occurring according to the odds. Formula: (1 / Decimal Odds) × 100.
How to Convert Betting Odds - Video Guide
Watch our comprehensive video tutorial on understanding and converting different betting odds formats.
What You'll Learn:
- • Converting between fractional, decimal, and American odds
- • Calculating implied probability from odds
- • Understanding the mathematical formulas
- • Practical examples and real-world applications
Odds Conversion FAQ
Common questions about converting between different odds formats with detailed explanations and formulas.
How do you convert odds to probability percentages?▼
How do you convert probability percentages to odds?▼
How do you convert American odds to decimal?▼
How do you convert American odds to fractional?▼
How do you convert fractional odds to decimal?▼
How do you convert fractional odds to American?▼
How do you convert decimal odds to fractional?▼
How do you convert decimal odds to American?▼
What's the difference between decimal odds and fractional odds?▼
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