Betting odds explained

1 4' In Decimal Form

A 1 in 500 chance of winning, or probability of winning, is entered into this calculator as '1 to 500 Odds are for winning'. You may also see odds reported simply as chance of winning as 500:1. This most likely means '500 to 1 Odds are against winning' which is exactly the same as '1 to 500 Odds are for winning.' Probability Formulas.

1. For example, for 4/1 or four-to-one fractional odds, the decimal odds would be 5.00: 4/1 = 4. US Odds (Moneyline Odds) Also known as ‘moneyline odds,’ US odds are mainly used by sportsbooks that cater to bettors in the US. US odds are probably the easiest to comprehend since the odds are represented by the amount that the bettor.
2. The most common odds format for European bookmakers is decimal, where a price such as 4.00 represents the equivalent of the 3/1 fractional price. In decimal prices, the returned stake in a successful bet is included the odds.

4 1 In Decimal Odds Calculator

Betting odds can appear daunting at first glance but they are actually quite straightforward to calculate. We’ve devised a beginners guide to explain betting odds.

How do odds work?

When looking at the odds (price) of a horse, the two formats used are decimals and fractions. Betting exchanges operate in decimals, whereas fixed-odds betting firms generally operate in fractions.

When determining the returns of a fractional bet, the second number always suggests the stake and the first number denotes what the profit will be if the bet wins. Take 4/1 as an example. If you stake £1 on a horse, then you stand to win £4 if the selection wins the race, which excludes your initial stake. In contrast, the decimal format factors in the initial stake. Betting odds of 4/1 would equate to 5.0 in decimal terms, 5/1 would be 6.0, and so forth.

See the chart below for a breakdown of betting odds in both fractional and decimal format, showing forecasted returns to £5 level stakes for the key prices in a market.

Knowing your odds

1 1 4 Decimal Equivalent

If you want to work out your winnings from a multiple bet such as an accumulator or lucky 15, you can use our betting calculator to find out instantly what you’ve won.