Slot Bankroll Calculator & Session Duration
Estimate how long your budget lasts, expected loss per hour, and total session duration based on theoretical RTP and bet per spin. Formula based on statistical house edge.
$100.00
$10$5,000
$0.50
$0.10$100
96%
85%99%
10 spins/min
3 (relaxed)30 (fast)
// Analytical Output
Est. Spins
5,000
spins before bust
Est. Session
8h 20m
at 10 spins/min
Expected Loss/Hr
$12.00
average per hour
Total Wager Volume
$2.5K
wagered until bust
House Edge:4.0%RTP 96%
DISCLAIMER: Statistical estimate based on the law of large numbers. Variance (volatility) means actual results can differ significantly — you may bust much faster or slower. Not a guarantee of play outcomes.
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How to Calculate Your Slot Budget
This bankroll calculator uses the house edge formula: expected loss per spin = bet × (100% - RTP%). The higher the game's RTP, the lower the house edge, and the longer your budget lasts statistically.
Example: $100 budget, $0.50 bet, RTP 96% → house edge 4% → $0.02 loss per spin → estimated 5,000 spins. At 10 spins/min → ~8.3 hours of play.
Slot Bankroll Management Tips
- Keep bets to a maximum of 1% of total budget per spin
- Set a stop-loss of 30–50% of starting budget before you start
- Choose games with RTP 96%+ — check Live RTP
- Run the RTP Simulator to see variance distribution before committing