Free Casino Calculators & Tools
Welcome to the Reelcelt tools hub. These three free calculators run on the same Monte-Carlo engine — they play out thousands of imaginary sessions to show you the realistic range of what could happen, not a single rosy number. Use them to weigh up a bonus before you claim it, to set a sensible budget, or to see what a game's RTP really means for your stake. Everything here is educational: the maths is honest, the limits are yours to set, and nothing on this page can promise a win. 18+.
Bonus Wagering Calculator — Is That Offer Worth It?
See whether a deposit-match bonus is worth claiming — your expected value, the chance you'll clear the wagering, and the full spread of outcomes.
Casino Bankroll Calculator — How Long Will It Last?
Work out how long your bankroll is likely to last, your risk of losing the lot, and your expected loss — framed to help you set limits, not chase them.
RTP Calculator — Turn Return-to-Player Into Real Euro
Turn a game's RTP into real euro: enter your stake and spins to see your expected return, expected loss, and a realistic range for a single session.