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Decimal Odds Calculator
Convert betting odds, calculate probabilities, and determine potential returns
Decimal Odds Configuration
Number of favorable outcomes (e.g., 1 for 1 out of 3)
Number of unfavorable outcomes (e.g., 2 for 2 out of 3)
Amount you want to bet
Decimal Odds Results
3.00
Decimal Odds
33.3%
Win Probability
$300.00
Gross Return
$200.00
Net Profit
Probability Analysis
Winning probability:33.33%
Losing probability:66.67%
Chances ratio:1.0 : 2.0
Risk level:High
Financial Analysis
Expected value:$0.00
Return on investment:200.0%
Breakeven probability:33.33%
Other Odds Formats
2/1
Fractional Odds
UK Format
+200
American Odds
US Format
33.3%
Implied Prob
Bookmaker View
Odds Format Guide
Decimal: 2.50
€100 bet returns €250
European format
Fractional: 3/2
Win £3 for every £2 bet
UK format
American: +150
Win $150 on $100 bet
US format
Risk Assessment
Risk Level:High
Expected Value:$0.00
Break-even:33.3%
✅ Positive expected value suggests a potentially profitable bet
Understanding Decimal Odds
What are Decimal Odds?
Decimal odds represent the total amount that will be returned for every unit staked, including the original stake. They're the most common format in Europe, Australia, and Canada.
Calculation Formula
Decimal Odds = (Chances for Success + Chances Against) / Chances for Success
Total Return = Stake × Decimal Odds
Profit = Total Return - Stake
Probability Conversion
- •Win Probability = 1 / Decimal Odds
- •Higher odds = Lower probability of winning
- •Odds of 2.00 = 50% chance of winning
Practical Examples
Odds: 3.00
$100 bet returns $300 (profit: $200)
33.3% win probability
Odds: 1.50
$100 bet returns $150 (profit: $50)
66.7% win probability
Odds: 5.00
$100 bet returns $500 (profit: $400)
20% win probability
Key Advantages
- •Easy to calculate total return
- •Intuitive comparison between bets
- •Direct probability conversion
- •Widely used internationally