Free Tools
Casino Bonus Wagering Requirements Calculator
Enter your bonus details to see the exact total you need to wager before you can withdraw.
Wagering applies to:
Enter your bonus amount and multiplier to see the result
How to use the wagering calculator
Open the bonus terms of the casino and find three things: the bonus amount, the wagering multiplier (for example 35x) and what the multiplier applies to. Then fill in the calculator:
- Pick Bonus only or Deposit + Bonus with the toggle at the top.
- Enter the bonus amount in euros. Add your deposit if the wagering covers both.
- Enter the multiplier without the "x".
The green number is the total you must bet on games that count 100% before the bonus turns into cash you can withdraw. If you plan to play games with a lower contribution, divide the result by the contribution rate. At 20% contribution, multiply the result by five.
Three worked examples
Example 1
€100 bonus, 35x on the bonus only.
€100 x 35 = €3,500 to wager.
Expected cost at 96% RTP: €3,500 x 4% = €140. EV: €100 - €140 = -€40.
Example 2
€100 deposit + €100 bonus, 35x on both.
(€100 + €100) x 35 = €7,000 to wager.
Expected cost: €7,000 x 4% = €280. EV: €100 - €280 = -€180.
Example 3
€50 bonus, 10x on the bonus only.
€50 x 10 = €500 to wager.
Expected cost: €500 x 4% = €20. EV: €50 - €20 = +€30.
The same 35x multiplier gives €3,500 in the first case and €7,000 in the second. One phrase in the terms ("deposit and bonus") doubles the work. That is why the toggle matters more than the headline multiplier.
Expected value: what a bonus is worth on average
Every bet on a casino game loses a small share on average. That share is the house edge, and it equals 100% minus the RTP. A slot with 96% RTP keeps about 4% of everything you bet over a long run. So the expected cost of clearing a bonus is simple to estimate:
EV = bonus - (total wagering x house edge)
If the result is above zero, the bonus is worth something on average. If it is below zero, you are expected to lose more while wagering than the bonus adds. The break-even multiplier for bonus-only wagering is 1 divided by the house edge: 25x at 96% RTP and about 33x at 97% RTP. A €100 bonus at 35x on a 97% RTP slot costs €105 on average, so the EV is close to zero (-€5) instead of -€40.
Two notes keep this honest. First, the formula is an average over many sessions. One session can end far above or far below it, which is the whole appeal of a bonus. Second, the formula slightly overstates the loss for players who bust: once the balance hits zero you stop betting, so you can never lose more than your own deposit. Treat the EV as a way to compare offers, not as a forecast for tonight.
Read the RTP of the exact game in its info screen, since many slots come in several RTP versions. Our RTP and volatility guide explains why, and slot pages such as Book of Dead RTP or Big Bass Bonanza RTP list the versions we found.
Which games clear wagering best
Slots at 100% contribution with a high RTP give the lowest expected cost per euro of wagering. Medium volatility keeps the balance alive for longer, while high volatility gives a small chance of a big win and a bigger chance of busting early. Check the max bet rule as well: many casinos cap bets at around €5 while a bonus is active, and breaking that rule can void the winnings. Our guide to wagering requirements and the list of bonus terms that cost players cover these rules in more detail.
If you want to skip the maths, look at no wagering bonuses and low wagering free spins. To value a full deposit offer with match percentage and caps, use the bonus value calculator, and for spin packages the free spins value calculator. Current codes for the casinos we review are on the bonus codes page.