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PTEN

Odds converter

Enter a price in any format. We show the other formats and the implied probability, with the bookmaker margin included.

40.0%

Odds of 2.50 mean an implied probability of 40.0%, with the bookmaker margin included.

Worked example

Decimal odds of 2.50 pay back 2.50 for every 1 staked if the bet wins (stake included). In the other formats:

1 ÷ 2.50 = 40.0% · 2.50 − 1 = 1.50 = 3/2 · (2.50 − 1) × 100 = +150

In fractional that's 3/2 and in American +150. The implied probability is 40.0%: the operator's price, not the real probability.

Which format do licensed operators in Portugal use?

Odds are normally shown in decimal format, with two decimal places.

Is the implied probability the real probability?

No. It's what the price implies, with the operator's margin included. The real probability of an outcome isn't known.

18+

Betting should be a pastime

If gambling has stopped being fun, Linha 1414 (ICAD) gives free, anonymous and confidential support on working days, 10:00 to 18:00. You can self-exclude from every licensed site through the SRIJ platform, for 3 months or more, or indefinitely.