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Tools that do the math.

Five calculators for checking wagering, bankroll risk, payout timing, bonus value and RTP cost.

12 calculators No sign-up Shareable URL No tracking

Check the numbers before you play

Choose a calculator below, enter your own figures and keep the result URL as a reproducible receipt.

01

Bankroll planner

Pick a starting bankroll, bet size and RTP. We return your expected loss, survival probability and a recommended max bet so a session does not end on spin three.

Sizing · risk Open tool →
02
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Wagering calculator

Enter the bonus, the multiplier and the game weighting. We return total turnover required, estimated time to clear and the bonus EV after the house edge has taken its cut.

Clearance · EV Open tool →
03

Payout-speed estimator

Choose deposit and withdrawal method, KYC status, VIP tier and the casino's stated payout SLA. We return pessimistic, median and best-case payout times so you can plan around real cash-out windows.

Cash-out · SLA Open tool →
04
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Bonus value calculator

Enter the match percentage, the bonus cap, the wagering multiplier and the game RTP. We return the turnover you owe, the expected cost of grinding it, and an honest verdict: positive or negative expected value.

Offer EV · verdict Open tool →
05
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RTP cost per hour

Stake, spins per hour and RTP in — the expected cost of an hour at that slot out. An expectation, not a promise: variance decides any single session, the edge decides the average.

Session · cost Open tool →
06

Roulette payout calculator

Pick a bet and a wheel. We return the payout, the true win probability, the expected value per spin and exactly what the zeros keep.

Odds · EV Open tool →
07

Virtual dice roller

Roll 1–10 dice from d4 to d20, server-side and cryptographically random, with the expected total shown next to every throw.

Random · fair Open tool →
08

Random card drawer

Draw up to 10 cards from a shoe of up to 8 decks, dealt server-side without replacement — with the exact hypergeometric odds of your draw.

Cards · fair Open tool →
09

Red or black generator

Spin up to 20 colors on a fair coin or a real wheel — and see how the green zeros turn 50/50 into 48.6%.

Colors · odds Open tool →
10

Roulette wheel simulator

A fair wheel with 37, 38 or 39 pockets: every pocket equally likely, and each extra zero shown as pure added house edge.

Wheel · edge Open tool →
11
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Lottery number generator

Quick-pick lines for Powerball, EuroMillions, Mega Millions, keno and more — with the real jackpot combinatorics next to every line.

Lottery · odds Open tool →
12

Roulette strategy simulator

Martingale, D'Alembert, Fibonacci or flat over up to 200 spins — the trajectory changes every run, the expectation never does.

Systems · EV Open tool →

How these tools work

Inputs travel in the URL and calculations use locked, tested application formulas. Results are estimates, not predictions or guarantees. We do not require an account to run a calculation.