Slot Machine RTP, Expected Loss & Volatility Calculator
Compute theoretical expected return and loss for any RTP and spin configuration. Understand how volatility affects your session. For education, not as gambling advice.
96% RTP · Medium Volatility
$1.00/spin × 200 spins = $200.00 total action
These are theoretical averages over millions of spins. Actual session results vary heavily — especially with high volatility. This is not a prediction.
RTP is a long-term theoretical average. Individual sessions may return significantly more or less than this percentage.
Medium Volatility Profile
Balance between session length and payout potential.
Bankroll Flow
How money moves during a typical slot session. Outcomes are random — this shows the flow, not a prediction.
Deposit
Starting bankroll enters the session.
Spins
Each spin deducts the bet amount from the bankroll.
Small Returns
Low-value wins return partial amounts to the bankroll.
Dead Spins
Non-winning spins drain the bankroll with no return.
Bonus Hit
Bonus rounds or free spins return larger amounts (if triggered).
Net Result
Session ends with bankroll above or below starting amount. Over many sessions, the house edge applies.
Deep dive into how Return to Player works.
The formula behind every expected loss result.
Strategy-driven alternative with lower house edge.
Responsible Gaming
This content is for educational purposes only. Gambling involves real financial risk and can be addictive. The house always has a mathematical advantage—there is no guaranteed winning strategy.