Odds Format Converter
Enter one odds format and a stake to see equivalent formats and the implied probability locally.
A QUICK WALKTHROUGH
How to use this tool
- Choose an odds format and enter valid odds.
- Enter a stake for the payout estimate.
- Review equivalent formats and implied probability.
Supported conversions
Decimal odds must be greater than 1; fractional odds use a positive numerator and denominator; American odds cannot be zero. The converter maps each to a common decimal value.
Payout convention
Total return = stake × decimal odds. Estimated profit = total return − stake. These are arithmetic estimates and do not include fees, tax, void rules, or bookmaker margin.
Scope
This is an informational calculator, not betting advice or a recommendation. Use only valid finite numeric inputs.
GOOD TO KNOW
Common questions
Does probability predict an outcome?
No. Implied probability is the reciprocal of decimal odds and is not a forecast or advice.
What does the payout include?
Total return includes the original stake. Profit is the amount above the stake.
Can I enter zero American odds?
No. American odds of zero are undefined for this conversion.