Tools

Bankroll & ROI calculator

Model expected session outcomes against bet size, blockchain gas fees, and withdrawal fees.

Bankroll (USD)

Bet size per round (USD)

1.0% of bankroll per bet

Auto-cashout target (×)

House edge (%)

Number of rounds

Blockchain

Charge network fee every round (on-chain game) — off models a centralized Provably Fair game with just a one-time deposit + withdrawal fee

Win probability per round49.5%

Expected value per round (before fees)-$0.02

Total wagered over 50 rounds$100.00

Expected result before fees-$1.00

Ethereum fees over session-$9.00

Net expected result-$10.00

This is a probability model, not a prediction — real sessions vary widely around this expected value. A higher cashout target wins less often for a bigger payout; the expected value stays governed by the house edge either way.