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ODDSVERITY TOOL

Implied Probability

Convert decimal, American or fractional odds into implied probability and understand the probability represented by a sportsbook price. Your values remain in this browser and are not submitted to a sportsbook.

How to use it

Market probability

Decimal equivalent2.500
Implied probability40.00%
Potential gross return per $100$250.00

Educational calculation only. Prices, limits, settlement rules, rounding and fees can change the real outcome. This tool does not place bets or guarantee profit.

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HOW IT WORKS

See the probability represented by any displayed price

Implied probability describes the break-even probability before considering market margin, account restrictions, fees or settlement differences. It is not a prediction that an outcome will occur.

FormulaImplied probability = 1 ÷ decimal odds. Multiply the result by 100 to express it as a percentage.

Examples

  • Decimal odds of 2.50 imply 40.00%.
  • American odds of -200 convert to 1.50 decimal and imply 66.67%.

Frequently asked questions

Why can all outcomes add up to more than 100%?

Sportsbook prices commonly include a margin. The implied probabilities of every outcome may therefore total more than 100%.

Is implied probability a win prediction?

No. It is the break-even probability represented by a price, not a guarantee or forecast.

How to read the result

The calculator applies standard mathematical formulas to the numbers you enter. It cannot confirm account eligibility, available limits, market equivalence or whether a displayed price remains available.

Responsible use

Betting involves financial risk. Never treat a theoretical calculation as guaranteed profit, and always verify local laws and the operator's final terms.