Rainbet Bonus Wager Calculator
Calculating for Rainbet β offer: Up to $2,100 + 60 free spins,
promo code BOOST20
.
Enter that offer's real terms below; the full terms breakdown has them.
Converts a bonus and its wagering multiplier into the turnover you actually have to generate, and the expected cost of generating it. Roulette weighting is the term that ruins most offers, and it is included.
Where bonuses go wrong for roulette players
Three terms do almost all the damage, and only one of them is advertised.
1. Game weighting
Slots usually count 100% toward wagering. Roulette often counts 10% or 20%, and sometimes 0%. At 20%, a $4,000 requirement means $20,000 of actual roulette turnover β and at 2.70% that carries an expected loss of $540 to unlock a bonus of a few hundred.
2. The wagering basis
"40Γ the bonus" and "40Γ bonus plus deposit" sound similar and differ by a factor of two on a 100% match. Check which one applies before you calculate anything else.
3. The maximum bet rule
Most bonuses cap the bet size while wagering is outstanding, commonly at $5. That does not change the cost, but it changes the time: $20,000 of turnover in $5 bets is 4,000 spins, which is around 80 hours at a live table. Many people abandon the bonus part-way, which means paying most of the cost and collecting none of the benefit.
Also check the excluded-bets clause. A large number of casinos void bonuses if you cover more than a set share of the roulette table β typically 65β70% of numbers, or simultaneous red and black. Low-risk covering strategies are exactly what those clauses exist to stop.
Rakeback avoids all three problems, which is why it usually beats a deposit bonus for a roulette player. Our rakeback calculator puts a number on it, and the bonus page compares the two directly.

GETRAKEBACK. 18+.
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18+. Roulette has a fixed house edge, so over enough spins the maths favours the operator β always. If you play for real, treat it as money spent on entertainment, set a limit before you start and stop when you reach it. Our responsible gambling page covers the warning signs and where to get free, confidential help.