Decimal odds explained: what the number really says
Most operators in Nigeria, Kenya and Ghana show decimal odds. Here is how to read them, turn them into a probability and see the margin built into the price.
- Worked examples
- Probability from odds
- Bookmaker margin
- No profit promises
Reading a decimal price
Four ideas are enough.
Return per unit
Odds of 1.85 return 1.85 for every 1 staked if you win, stake included. The profit is 0.85.
Implied probability
Divide 1 by the odds. For 1.85 that is 1 ÷ 1.85 = 0.54, about 54 %.
The margin
Add the implied probabilities of every outcome of a match. Above 100 % is the bookmaker margin.
Value
A bet has value only if your own estimate of the chance is higher than the one the odds imply.
A worked example, step by step
A match with three outcomes.
Decimal, fractional and American
The same price in three formats.
| Decimal, fractional and American | Looks like |
|---|---|
| Decimal (used here) | 1.85 |
| Fractional | 17/20 |
| American | -118 |
⚠️ This page is sports information, not a promise of profit. We do not take bets. Only stake what you can afford to lose and follow the betting rules of your country. 18+ only.
Frequently asked questions
What people ask us most.
What do odds of 2.00 mean?
You get 2.00 back for each 1 staked if you win, so 1.00 profit. The implied probability is 50 %.
Why do odds differ between operators?
Each operator sets its own margin and reacts to its own betting. Comparing prices before you bet is part of betting well.
Do lower odds mean a sure win?
No. Lower odds mean the operator thinks the outcome is more likely, not that it is certain. Favourites lose often enough to matter.
Is there a tool to convert odds?
Yes, our free odds converter turns decimal, fractional and American odds into each other.