How to read the result
- Expected cash out: the average withdrawable balance across all simulated sessions, including those that bust.
- Expected profit vs deposit: positive means the bonus adds more than the house edge takes, on average.
- Chance to finish wagering: how often a session survives to the end of the wagering requirement.
- Value lost to the cap: the average amount removed by max cashout. Compare the same offer with the cap field left blank.
Method
Each spin draws a payout from a distribution of multipliers whose average equals your RTP. Low, medium and high volatility shift probability from frequent small wins to rare large ones; the high setting includes multipliers up to several thousand times the stake. Each session starts with deposit plus bonus, plays at your stake until wagering is met or the balance runs out, and then applies the cap to anything above your deposit. The model ignores game contribution, time limits and max bet rules; it is a guide to how the terms interact, not a model of any specific game.
Gambling has a negative expected return without a bonus, and bonuses rarely change that by much. Use this to compare offers, not to justify a deposit. Responsible gambling.
Frequently asked questions
How does the calculator work?
It plays out thousands of simulated bonus sessions spin by spin, using a payout model scaled to your RTP and volatility, then averages what you could withdraw with and without the cap.
Why does the result change slightly each time?
Each run is a fresh random simulation. Small differences between runs show how random individual sessions are.
Is this how much I will win?
No. It is an average over many simulated sessions. Any single session can end anywhere from zero to a large win, and the house edge means you lose money over time.