Betting Odds Calculator

Fractional Odds11/1
Decimal Odds12
Implied Probability8.33%
£10 Profit£110.00

11/1 means that for every £1 you stake, you win £11 in profit if the bet wins. Your stake is returned on top of that, so a £1 bet at 11/1 returns £12 total.

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The implied probability is 8.33%. This means the bookmaker prices this outcome as having roughly a 8.33 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 11/1 Odds

Stake Profit Total Return
£1.00 £11.00 £12.00
£5.00 £55.00 £60.00
£10.00 £110.00 £120.00
£20.00 £220.00 £240.00
£50.00 £550.00 £600.00
£100.00 £1,100.00 £1,200.00

Odds Conversion

Format Value
Fractional 11/1
Decimal 12
American +1100
Implied Probability 8.33%

How the Calculation Works

Winnings: Stake x (11 / 1) = Profit. So £10 x (11 / 1) = £110.00 profit.

Probability: 1 / (11 + 1) = 1 / 12 = 8.33%.

Decimal odds: (11 / 1) + 1 = 12. 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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