Betting Odds Calculator

Fractional Odds50/1
Decimal Odds51
Implied Probability1.96%
£10 Profit£500.00

50/1 means that for every £1 you stake, you win £50 in profit if the bet wins. Your stake is returned on top of that, so a £1 bet at 50/1 returns £51 total.

Disclosure: Tablet Betting may receive compensation from listed brands. Read full disclosure.

The implied probability is 1.96%. This means the bookmaker prices this outcome as having roughly a 1.96 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 50/1 Odds

Stake Profit Total Return
£1.00 £50.00 £51.00
£5.00 £250.00 £255.00
£10.00 £500.00 £510.00
£20.00 £1,000.00 £1,020.00
£50.00 £2,500.00 £2,550.00
£100.00 £5,000.00 £5,100.00

Odds Conversion

Format Value
Fractional 50/1
Decimal 51
American +5000
Implied Probability 1.96%

How the Calculation Works

Winnings: Stake x (50 / 1) = Profit. So £10 x (50 / 1) = £500.00 profit.

Probability: 1 / (50 + 1) = 1 / 51 = 1.96%.

Decimal odds: (50 / 1) + 1 = 51. 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.
Read more