Bonzora tools
Wagering & bonus calculator
A bigger bonus isn't always a better deal. See the play required before you commit.
Your bonus terms
Display currency only — no exchange-rate conversion.
Check your game's contribution and the offer's maximum bet. This calculator does not verify operator limits.
Total play required
€4,000.00
€100.00 × 40 wagering ÷ 100% contribution
- Credited wagering needed
- €4,000.00
- Bets at €2.00
- 2,000
Theoretical RTP cost Optional
Theoretical loss: €160.00
Turnover × (1 − RTP). RTP is a long-run average, not a forecast for your session. You may lose your entire deposit before completing wagering. No cashout is predicted.
Required turnover is money staked, not money deposited or guaranteed winnings. Expiry, excluded games, max bets and cashout caps still apply. Sportsbook minimum odds and qualifying-bet rules are not modelled.
Tired of high rollover requirements?
Compare verified casino and sportsbook offers with 1x–20x wagering terms.
Explore low-wagering bonusesHow to calculate bonus wagering requirements
A wagering requirement, also called rollover, is the amount of qualifying bets needed to meet an offer's turnover condition. Turnover is money staked across bets, not an extra deposit, profit or guaranteed withdrawal. The same balance can be staked again after a winning bet, but losses can exhaust it before the requirement is completed.
Bonus only or deposit plus bonus?
First identify the wagering base in the operator's terms. Bonus-only wagering uses the bonus amount. Deposit-plus-bonus wagering uses the sum of your deposit and bonus.
Credited turnover = wagering base × wagering multiplier
For a €100 bonus at 40×, the credited requirement is €4,000. With a €100 deposit and a €100 bonus at 40× on both amounts, it is €8,000. These are generic examples, not a specific casino's terms.
Adjust for game contribution
Actual turnover = credited turnover ÷ (contribution % ÷ 100)
A €4,000 credited requirement at 20% contribution needs €20,000 in actual bets. At 0% contribution a game cannot clear wagering; the calculator rejects that input. Use the published contribution for your chosen game rather than assuming all games count equally.
Bet count and theoretical RTP cost
Required bets are actual turnover divided by the bet amount, rounded up. €4,000 turnover at €2 per bet means 2,000 bets, assuming each bet qualifies and the balance lasts.
Theoretical loss = actual turnover × (1 − RTP % ÷ 100)
At 96% RTP, €4,000 turnover has a theoretical loss of €160. RTP describes a long-run statistical average. It does not predict your session, whether you finish wagering, or what you can withdraw.
Check the rules beyond the multiplier
Compare maximum bets, expiry, excluded games, maximum winnings, withdrawal caps and eligibility alongside rollover. For sportsbook offers, also check minimum odds, qualifying markets, settled bets and freebet stake rules; casino RTP does not model those conditions.
The eight currencies change the displayed unit only, not the amounts or exchange rates. You can compare low-wagering bonus reviews and read how Bonzora scores bonuses before assessing an offer.
Understanding the numbers
18+ and legal gambling age only. A bonus is not a reason to spend more than you can afford to lose. Responsible gambling resources