Betting Odds Calculator

Fractional Odds10/1
Decimal Odds11
Implied Probability9.09%
£10 Profit£100.00

10/1 means that for every £1 you stake, you win £10 in profit if the bet wins. Your stake is returned on top of that, so a £1 bet at 10/1 returns £11 total.

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The implied probability is 9.09%. This means the bookmaker prices this outcome as having roughly a 9.09 in 100 chance of happening.

These are odds against – the potential profit is greater than your stake. The higher the first number relative to the second, the less likely the bookmaker thinks the outcome is.

Winnings Table for 10/1 Odds

Stake Profit Total Return
£1.00 £10.00 £11.00
£5.00 £50.00 £55.00
£10.00 £100.00 £110.00
£20.00 £200.00 £220.00
£50.00 £500.00 £550.00
£100.00 £1,000.00 £1,100.00

Odds Conversion

Format Value
Fractional 10/1
Decimal 11
American +1000
Implied Probability 9.09%

How the Calculation Works

Winnings: Stake x (10 / 1) = Profit. So £10 x (10 / 1) = £100.00 profit.

Probability: 1 / (10 + 1) = 1 / 11 = 9.09%.

Decimal odds: (10 / 1) + 1 = 11. Multiply your stake by this to get the total return including your stake.

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Written & Reviewed by Matt K
Sports Betting Analyst at Winners Media

I have been covering the UK betting industry since 2007, testing sportsbooks across mobile and desktop. At TabletBetting, I review betting sites, compare odds and payment methods, and track new bookmaker launches. My focus is on the mobile experience - how apps perform under real conditions, not just what the marketing says.
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