Find out the theoretical net result of any bonus after completing its wagering requirement. Know before you accept.
Calculate the theoretical value of a bonus offer after completing its wagering requirement. Find out if an offer has positive expected value before you accept it.
Formula: (Bonus Amount × Wagering Requirement / Wagering Contribution%) × (1 − RTP)
*Different game types offer different wagering contribution. Slots are usually 100%, table games are usually 20%.
**The lower the funds, the higher the volatility.
The wagering requirement is the hidden cost buried in every casino bonus offer. A $10,000 bonus sounds valuable — until you read that it comes with a 35x wagering requirement, meaning you must wager $350,000 before withdrawing. At 96% RTP, that playthrough costs an expected $14,000 in losses — more than the bonus itself. This calculator runs that math instantly, before you decide.
Enter the bonus amount, the times wagering requirement (e.g. 20x, 35x), the game RTP you plan to use, and the wagering contribution percentage for that game type. Slots typically contribute 100%, while table games often contribute only 10%–20%, which multiplies the effective wagering required significantly — a 20x requirement on slots becomes an equivalent 200x requirement if you play a 10%-contribution game.
Example: $10,000 bonus at 20x wagering, 96% RTP, 100% contribution. Required wagering: $200,000. Expected loss at 4% house edge: $8,000. Net result after clearing: +$2,000. This bonus has positive expected value — take it.
Change the wagering requirement to 50x and the math inverts: $500,000 required, $20,000 expected loss, net result: −$10,000. The casino is offering you free money that costs more than it pays. The verdict indicator below the result updates instantly as you adjust the inputs — green means the bonus clears positive, red means decline it.
Most experienced players decline bonuses with wagering requirements above 25x on 96% RTP games. The break-even point is roughly: wagering requirement ÷ (1 − RTP). At 96% RTP, any wagering requirement above 25x will statistically cost more than the bonus is worth.