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Betting Odds Converter

Easily switch between American, Decimal, Fractional, and Implied odds

Enter Odds

Risk Warning
Gambling involves financial risk and may lead to addiction. Play responsibly.
Choose the odds you have been given or would like to test
American Odds

0

Decimal Odds

0.0

Implied Odds

0.00%

Fractional (UK) Odds

0/0

How converter works?

American odds to decimal formula

Positive Decimal = (American odds / 100) +1

Negative Decimal = (100 / American odds) +1

Decimal odds to american formula

Odds 2.0 or more American = (Decimal odds -1) * 100

Between 1.01 and 1.99 American = -100 / (Decimal odds - 1)

Decimal odds to implied profitablity formula

(1/ decimal odds) * 100 = implied probability

American odds to implied profitability formula

Positive 100 / (positive American odds + 100) * 100 = implied probability

Negative Negative American odds / (Negative American odds + 100) * 100 = implied probability

Just in case you also need betting odds calculator

Bet type

Risk Warning
Gambling involves financial risk and may lead to addiction. Play responsibly.

Bet amount

Choose an amount you want to bet

Odds

Choose the odds you have been given or would like to test

Total Payout

Your total payout with the current odds and stake.

$0.0

Profit

$0.00

Decimal

0

Implied Odds

0%

Fractional (UK) Odds

0/0

FAQ

How to read odds?
  • American: Positive or negative numbers show potential profit or the amount you need to bet.
  • Decimal: Shows the total return (including stake) per $1 wagered.
  • Fractional: Shows the profit relative to your stake.
How to convert odds to payout?

Multiply your stake by the odds:

  • Decimal: Payout=Stake
  • Fractional: Add 1 to the fraction, then multiply by the stake.
  • American: Use a formula based on positive or negative odds.
Can I use this calculator for multiple bets?

A betting odds calculator is a tool that helps you calculate your potential payout and profit for a given bet based on your stake and chosen odds format (American, Decimal, Fractional, or Implied odds).

How to calculate fractional odds?

Fractional odds show the profit relative to your stake. For example, 3/1 means you win $3 for every $1 wagered.

What is 200+ odds?

+200 odds in American format mean you’ll win $200 for every $100 wagered if the bet succeeds.

How to convert odds to implied probability?
For American odds:

  • Positive odds: Probability=(100/(odds+100))×100% 
  • Negative odds: Probability=(Odds/(Odds−100))×100%