Free Casino Calculators
These three free calculators help you see the maths behind a bonus, a budget and a slot before you risk a single dollar. They are powered by the same Monte-Carlo engine that plays out thousands of imaginary sessions, so instead of a single tidy number you get a realistic range of what could actually happen. Nothing here promises a win — gambling always favours the house over time. The point is simply to make the odds visible so you can make calmer, better-informed decisions.
Bonus Wagering Calculator — Is the Offer Worth It?
See whether a deposit bonus is actually worth claiming — its expected value, the chance you clear the wagering, and the full range of outcomes.
Casino Bankroll Calculator — How Long Will It Last?
Find out how long a bankroll is likely to last at your chosen stake, your risk of losing the lot, and your expected loss for the session.
RTP Calculator — Expected Return & Realistic Range
Estimate the expected return on a stake over a set number of spins, plus the realistic high-and-low range around that average.