Crash multiplier calculator
and live simulator.
Play it like the real thing — 1,000 free demo credits, a live climbing multiplier, cash out whenever you want. Every win chance below comes from the same formula every provably-fair crash game runs on, derived here in full.
- Return to player
- 99.00%
- House edge
- 1.00%
Or click Cash Out manually any time.
Demo credits only. No funds, no account, no payout.
One formula, any target you pick.
The multiplier climbs from 1.00× until a pre-committed crash point is reached — generated before the round starts, the same way a Mines layout or a Plinko drop is committed in advance. The chance the crash point lands at or past your cash-out target m is exactly RTP ÷ m. Pick a bigger target and the chance of getting there before it crashes shrinks to match — that's what keeps every target's long-run edge identical.
Two scope notes: this calculator models one bet per round, though many real platforms let you place two simultaneous bets with separate targets. And real rounds commonly run somewhere in the 8–30 second range depending on how high the crash point lands — this simulator's pace is tuned for a quick demo, not matched to any specific platform's timing.
That −1.00% figure doesn't move if the target changes to 1.5× or 100× — only the win chance and the size of the payout do. The edge is baked into the formula itself, not into any particular target.
Higher target, lower odds — same edge underneath.
| Cash-out target | Win chance | Expected value |
|---|---|---|
| 1.5× | 66.00% | -1.00% |
| 2× | 49.50% | -1.00% |
| 3× | 33.00% | -1.00% |
| 5× | 19.80% | -1.00% |
| 10× | 9.90% | -1.00% |
| 20× | 4.95% | -1.00% |
| 50× | 1.98% | -1.00% |
| 100× | 0.99% | -1.00% |
A tighter edge than most of the casino floor.
A ~1% house edge sounds abstract until it's next to the games most people already know. It's not the tightest edge available — blackjack played with correct basic strategy beats it — but it's meaningfully better than roulette or a typical online slot. These comparison figures are widely-cited industry conventions, not independently re-derived here the way the Crash formula itself is.
Not every "Crash" runs the same edge.
The formula above — RTP ÷ target — is the standard shape almost every crash game uses, but the RTP itself varies. Stake and BC.Game's in-house Crash both cite the crypto-standard ~1% edge; Spribe's Aviator, the most widely-licensed branded crash game, typically runs a noticeably lower ~97% RTP. Same math, different number plugged in.
99% RTP convention — the table above
Own in-house Crash, ~99% RTP cited. Read the guide →
Own in-house Crash, ~99% RTP cited. Read the guide →
Own in-house Crash. Read the guide →
Three questions people ask next.
Crash strategy
What your cash-out target actually changes — and why no target beats the house edge.
Martingale tester
Simulate the double-after-a-loss betting system yourself and see why it doesn't work.
Aviator odds explained
How Spribe's Aviator compares to a standard 99%-RTP crash game.
Four more tools
run the same way.
Mines, Plinko, Dice and Bonus & VIP all publish their formula the same way Crash does here — free, no signup, demo only.