Check standard hypothetical roulette net profit, gross winning return, event probability and expected net result for two wheel sizes.
How to use this tool
- Choose the event or model and review the assumptions below.
- Enter the labeled inputs.
- Select Calculate and read the labeled outputs.
- Change an input and calculate again; Reset restores the example inputs.
Calculation method
Win probability=covered pockets/total pockets. Net win=stake×profit odds. Gross winning return=stake+net win. Expected net=stake[p×profit odds−(1−p)].
Assumptions and limits
Educational payout arithmetic under the entered standard rules, equal-likelihood pockets and no special zero rules. La partage, en prison, promotions and actual venue terms are excluded. No wagering transactions or selection recommendations.
Worked example
On a 37-pocket model, a 10-unit straight-up stake has net successful profit 350 and gross successful return 360. Its expected net result is approximately −0.270270 units.
Worked reading and practical questions
- Roulette Payouts: Net Win vs Total Return Including the Stake
- Zero Pockets and Expected Loss Under Standard Payout Rules
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Frequently asked questions
What does this calculator assume?
Educational payout arithmetic under the entered standard rules, equal-likelihood pockets and no special zero rules. La partage, en prison, promotions and actual venue terms are excluded. No wagering transactions or selection recommendations.
How do I enter and update the inputs?
Use the labeled fields, then select Calculate. Percent fields use 0 to 100. After editing, calculate again; Reset restores the example inputs.