Tools/Odds Converter

Odds Converter

Convert between decimal, fractional, and American odds instantly. See implied probability for any format.

Decimal
2.50
Fractional
6/4
American
+150
Implied Probability
40.00%
Profit on £100
£150.00
Payout on £100
£250.00

Quick Reference

DecimalFractionalAmericanProb %
1.501/2-20066.7%
2.00Evs+10050.0%
2.506/4+15040.0%
3.002/1+20033.3%
4.003/1+30025.0%
5.004/1+40020.0%
6.005/1+50016.7%
8.007/1+70012.5%
10.009/1+90010.0%
21.0020/1+20004.8%

How to Convert Odds

Decimal odds show your total return per unit staked. Odds of 2.50 mean a £1 bet returns £2.50 (£1.50 profit).

Fractional odds show profit relative to stake. 6/4 means £6 profit for every £4 staked. Used mainly in UK and Irish betting.

American odds use + and - notation. +150 means £150 profit on a £100 bet. -200 means you need to bet £200 to profit £100.

Implied probability converts odds into a percentage chance. Lower odds = higher implied probability.