Casino Bonus Calculator
See how a bonus percentage and wagering multiplier translate into actual play-through. Enter the terms shown by the casino instead of relying on headline bonus size alone.
Instant calculation
Bonus-only or deposit + bonus
Game contribution included
Enter Bonus Terms
Use the exact values from the casino's terms and conditions.
€
%
€
x
Check the casino T&Cs — this changes the result significantly.
%
Slots are often 100%; other games may contribute less or nothing.
Please enter valid positive values. Game contribution must be between 0.01% and 100%.
How the calculation works
Bonus amount = deposit × bonus percentage. The wagering base is then multiplied by the wagering requirement. If the selected games contribute less than 100%, more total betting is needed to generate the same qualifying wagering.
€100 deposit × 100% bonus = €100 bonus · €100 × 35 = €3,500 required wagering.
This calculator explains the arithmetic only. Casino terms can also include
maximum-bet rules, excluded games, expiry periods, country restrictions and
different contribution rates. Always check the current bonus terms before depositing.