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Betting Odds Converter

Odds Converter & Calculator

To use this simple betting odds calculator, simply type the odds in the format of your desire and select “Convert”. If you have troubles, try refreshing the page.

How to use the Betting Odds Converter- 

Simply type in the betting odds in your desired format and the odds conversions will appear as you type.

There are 3 common ways in which bookmakers present odds, and these include – 

Fractions

Used in Ireland and the United Kingdom, fractions quote the potential profit should a bet win, relative to the outlay.

eg. if £100 is bet at odds of 2/1 the potential profit is £100 (£100 x 2) and the total returned is £200 (£10 0 plus the £100 stake).

American

Positive figures (+): The odds state the winnings on a $100 bet e.g. american odds of +110 would win $110 on a $100 bet.

Negative figures (-): The odds state how much must be bet to win $100 profit e.g. american odds of -90 would win $100 on a $90 bet.

Decimals

Decimals quote the potential return should the bet win, relative to the outlay. For example if $10 is bet at odds of 2.00 the total returned is $20 ($10 * 2) the potential profit is $10 ($10 x 2 minus the $10 stake).

 

Implied Probability

Odds correlate directly with probability –  e.g a 2/1 bet is expected to win one in every 3 attempts, hence the probability is 33%.

Odds Converter Table By Type

Here is a table to give you an overview of how the Fraction, Decimal and American odds convert.

Fraction Decimal ($) American
Probability
1/5 1.20 -500 83.30%
2/9 1.22 -450 81.80%
1/4 1.25 -400 80%
2/7 1.29 -350 77.80%
3/10 1.3.0 -333.3 76.90%
1/3 1.33 -300 75%
4/11 1.36 -275 73.30%
4/9 1.44 -225 69.20%
1/3 1.33 -300 75%
5/4 2.25 +125 44.40%
11/8 2.38 +137.5 42.10%
9/1 10.00 +900 10%
10/1 11.00 +1000 9.10%
20/1 21.00 +2000 4.80%
50/1 51.00 +5000 2%
100/1 101.00 +10000 1%
1000/1 1001.00 +100000 0.10%