Definition
Decimal odds are the standard format used across Europe and most of the world outside the US and UK. They represent the total amount returned for every dollar staked, including the original stake. Odds of 2.50 mean you receive $2.50 for every $1 wagered -- $1.50 in net profit plus your $1 stake back.
How It Works
The math is straightforward: Total Return = Stake x Decimal Odds, and Net Profit = Stake x (Odds - 1). To find the implied probability, divide 1 by the odds: 1 / 2.50 = 40%. The lower the decimal odds, the more likely the bookmaker considers the outcome.
Example
Bet: favorite to win at odds of 1.65, stake of $100
- Total return: 100 x 1.65 = $165
- Net profit: 100 x (1.65 - 1) = $65
- Implied probability: 1 / 1.65 = 60.6%
Why It Matters
Decimal odds are the simplest format for calculating returns and comparing value across bookmakers. Unlike fractional or American odds, you can instantly see your total payout just by multiplying. They also make it easy to calculate implied probabilities and spot value bets. If you are serious about betting, learning to think in decimal odds gives you the fastest path to analyzing markets and identifying edges.
Use our odds converter to switch between decimal, fractional, and American formats instantly and compare odds across international bookmakers.