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Betting Odds Converter

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Decimal
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American
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Fractional
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Implied prob.

Convert betting odds between American (moneyline), decimal, fractional and implied probability with a single input. Sportsbooks around the world quote the same wager in different formats: American odds like +150 or -200 in the US, decimal odds like 2.50 in Europe and Australia, and fractional odds like 3/2 in the UK and Ireland. This converter takes any one of those formats and shows you the other three plus the break even win probability, so you can compare prices across books and spot the better line. Type a value, pick which format you entered, and every equivalent updates as you go. All math runs locally in your browser, so nothing you enter is ever sent to a server.

Frequently asked questions

What is Betting Odds Converter?

Convert betting odds between American (moneyline), decimal, fractional and implied probability with a single input. Sportsbooks around the world quote the same wager in different formats: American odds like +150 or -200 in the US, decimal odds like 2.

Is Betting Odds Converter free to use?

Yes. Betting Odds Converter is completely free, with no sign-up and no usage limits.

Does Betting Odds Converter work in a web browser?

Yes. Betting Odds Converter runs in any modern web browser. There is nothing to download or install.

Is my data private with Betting Odds Converter?

Yes. Betting Odds Converter runs entirely on your device in your browser, so nothing you enter is uploaded to a server.