Table-game strategy

Paytable RTP and variance calculator

Use your outcome probabilities

Return to player

95 %

Any payout frequency

50 %

Profitable round frequency

50 %

Expected net result

−50.00 ₽

Standard deviation

95.00 ₽

How it works

Each line contains a gross multiplier and its probability in percent. Include zero-return outcomes; percentages must add to 100. A 1× return is a push, not a profitable round.

50% at 0× and 50% at 1.9× gives 95% RTP. Over 100 bets of 1, expected net loss is 5 and standard deviation is 9.5.

Independent rounds. This tool does not infer undisclosed slot probabilities from RTP alone. Bonus rounds and correlated outcomes need a complete round-level distribution.

RTP = Σ pᵢmᵢ; session SD = stake × √[rounds × (Σ pᵢmᵢ² − RTP²)]

Reviewed August 28, 2026PlusEV Lab editorial teamCalculation methodology

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How the Paytable RTP and variance calculator works

Each line contains a gross multiplier and its probability in percent. Include zero-return outcomes; percentages must add to 100. A 1× return is a push, not a profitable round.