Betting Odds Calculator

Fractional Odds6/4
Decimal Odds2.5
Implied Probability40%
£10 Profit£15.00

6/4 means that for every £4 you stake, you win £6 in profit if the bet wins. Your stake is returned on top of that, so a £4 bet at 6/4 returns £10 total.

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The implied probability is 40%. This means the bookmaker prices this outcome as having roughly a 40 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 6/4 Odds

Stake Profit Total Return
£1.00 £1.50 £2.50
£5.00 £7.50 £12.50
£10.00 £15.00 £25.00
£20.00 £30.00 £50.00
£50.00 £75.00 £125.00
£100.00 £150.00 £250.00

Odds Conversion

Format Value
Fractional 6/4
Decimal 2.5
American +150
Implied Probability 40%

How the Calculation Works

Winnings: Stake x (6 / 4) = Profit. So £10 x (6 / 4) = £15.00 profit.

Probability: 4 / (6 + 4) = 4 / 10 = 40%.

Decimal odds: (6 / 4) + 1 = 2.5. Multiply your stake by this to get the total return including your stake.

Similar Odds

Back to Betting Odds CalculatorHow Betting Odds Work

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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