How should I use this result?

Treat it as a fast decision aid. For execution-sensitive trades, check live bid, ask, fees, and slippage before acting.

Does this assume Polymarket-style binary settlement?

Unless a tool says otherwise, outputs assume binary shares settle to either $1 or $0 at resolution.

ConversionsFree utility

Convert American, decimal, or fractional odds into implied probability.

odds converteramerican oddsdecimal odds

Adjust live

Calculator setup

Enter your assumptions and this tool will update immediately.

Odds

Instant

Primary output

40.00%

Implied probability

Live resultReady to copy

Notes

This does not remove vig from a two-sided sportsbook market.

Keep the workflow moving with the next most relevant calculators.

Implied Probability Converter

Convert a prediction-market price into implied probability in one step.

Price-from-Probability Target

Turn your belief into a fair price, rounded to a usable tick.

Probability to Logit Converter

Convert between probability and log-odds for Bayesian-style workflows.

Multi-Outcome Normalizer

Normalize a list of outcome prices into probabilities that sum to 100%.