Wagering Requirement Calculator: Casino Bonus EV & Rollover (2026)
Casino bonuses look generous on banners, but wagering requirements (rollover) determine whether a promo has positive expected value (+EV) or is mathematically designed to drain your deposit. This Wagering Requirement Calculator computes your total required playthrough, expected losses based on game house edge, and your estimated net cashout.
Total turnover required is calculated as:
Required Turnover = Bonus Amount × Rollover Multiplier (or (Deposit + Bonus) × Rollover for sticky promotions). The real mathematical cash retained upon clearing is Expected Value (EV) = Bonus Amount - (Required Turnover × House Edge). For example, a $100 bonus with a 30x rollover on a standard 96% RTP slot (4% edge) demands $3,000 in wagering, incurring $120 in expected loss—resulting in an overall negative EV of -$20.00.| Rollover Multiplier | Total Turnover ($100 Bonus) | EV on 0.0% Edge (Duel Casino) | EV on 1.0% Edge (Provably Fair) | EV on 4.0% Edge (Standard Slots) |
|---|---|---|---|---|
| 10x Rollover | $1,000 | +$100.00 | +$90.00 | +$60.00 |
| 20x Rollover | $2,000 | +$100.00 | +$80.00 | +$20.00 |
| 30x Rollover | $3,000 | +$100.00 | +$70.00 | -$20.00 (Loss) |
| 40x Rollover | $4,000 | +$100.00 | +$60.00 | -$60.00 (Loss) |
| 50x Rollover | $5,000 | +$100.00 | +$50.00 | -$100.00 (Bust) |
Casino Bonus & Wagering Contribution Calculator
Enter your bonus amount, deposit match, wagering multiplier (e.g., 30x, 40x), and eligible game contribution percentage to calculate your required turnover:
Wagering Contribution Calculator
| Amount wagered | Weight % | HE % | |
|---|---|---|---|
The Mathematics of Wagering Requirements: The True Cost
When a casino offers a 100% match bonus up to $500 with a 35x wagering requirement on (Deposit + Bonus), many players underestimate the massive turnover required:
Total Wagering Required = (Deposit + Bonus) * Multiplier Total Turnover = ($500 + $500) * 35 = $35,000
If you play online slots with an average Return to Player (RTP) of 96.00% (4.00% house edge), your mathematical expected loss during turnover is:
Expected Loss = Total Turnover * House Edge Expected Loss = $35,000 * 0.04 = $1,400
Game Contribution Traps
Not all games contribute 100% toward wagering requirements:
- Slots: Typically 100% contribution.
- Roulette & Blackjack: Usually 5% to 10% contribution (or excluded entirely). A 10% contribution effectively multiplies your playthrough by 10x (a 35x requirement becomes an impossible 350x!).
Comprehensive Bonus EV Calculator
Evaluate complex bonus mechanics including sticky bonuses, max cashout caps, and deposit fees: