Betting odds describe the quoted price for a selection and determine the potential return on an accepted wager. Decimal odds show the total return per unit staked, including the original stake if the bet wins. They do not show a guaranteed result or an objective prediction.
Calculate total return and profit
With decimal odds D and stake S, total return if successful equals S × D. Profit equals S × (D − 1). At 2.40 with a 25-unit stake, total return is 60 units and profit is 35. If the bet loses, the entire 25-unit stake is lost. This example excludes fees or special deductions.
Convert odds to raw implied probability
The elementary conversion is 100 ÷ decimal odds. Thus 2.00 equals 50%, 2.50 equals 40% and 4.00 equals 25%. These are price-derived percentages, not fair winning probabilities. Quoted markets typically include bookmaker margin.
Margin example: two-sided market
Suppose both outcomes in a hypothetical two-way event are priced at 1.91. Each is 52.36% by the conversion, and together they total about 104.71%. The 4.71 percentage points above 100% represent the illustrative overround in this market. This is a feature of quoted prices, not a guarantee of bookmaker profit on any particular event.
Quick odds-reference table
| Decimal odds | Raw implied probability | Total return for 10-unit winning stake |
|---|---|---|
| 1.50 | 66.67% | 15 |
| 2.00 | 50.00% | 20 |
| 2.50 | 40.00% | 25 |
| 4.00 | 25.00% | 40 |
American odds and conversion
Positive American odds such as +150 indicate 150 units of profit for a 100-unit stake if successful and correspond to decimal 2.50. Negative American odds such as −200 indicate 200 units must be risked for 100 units of profit and correspond to decimal 1.50. The settlement rules and stake still determine the amount at risk.
What changes the odds you receive?
Prices may change as information, event state or trading decisions change. For a live market, the accepted price can differ from the first price displayed. Read in-play price movement, football market settlement, and the sports betting overview.
Use the arithmetic for clarity, not certainty
Before staking money, verify the current offer, market terms, bookmaker authorization and affordability. This independent page does not publish real-time prices or certify that EstrelaBet is available in the visitor's jurisdiction.
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