Bonus Comparison Tool
Two offers, one answer. Load any two of our reviewed casinos — or type in any offer yourself — and see which is genuinely better value once wagering, game contribution, RTP, max-cashout caps and your realistic chance of clearing it are taken into account, not just which has the bigger headline number.
| Metric | Offer A | Offer B |
|---|---|---|
| Bonus amount | — | — |
| Total wagering required | — | — |
| Expected loss clearing it | — | — |
| Bonus EV (if you clear it) | — | — |
| Chance you clear it | — | — |
| Realistic value (EV × clear chance) | — | — |
| Realistic EV as % of deposit | — | — |
| Fairness grade | — | — |
EV is a long-run average, not a prediction for one session — real results vary widely. The clear-through chance is a model, not a promise. A positive EV means an offer is, on average, worth claiming; it never guarantees a win. Always read the full bonus terms on the operator's site. Play responsibly →
Why the bigger bonus often loses
Casinos compete on headline numbers because big percentages sell. But a bonus is only worth what survives its wagering requirement — and whether you can realistically finish that wagering before your balance runs out. Load two of our reviewed casinos above and the tool pulls their real terms straight from the review; or type in any offer to test it yourself.
A "200% up to $2,000" offer with 60× wagering, 20% table-game contribution and a 5× cashout cap can be mathematically worse than a plain "100% up to $500" with 25× wagering on 100%-contribution slots. This tool runs both through the same expected-value calculation — then discounts each by your realistic chance of clearing it — so the marketing washes out and the real number is left standing.
Want the full single-offer breakdown with an A–F grade? Use the Bonus Value Calculator. To see how the house edge drives that expected loss, try the House Edge Calculator.
Bonus comparison FAQ
How do you compare two casino bonuses fairly?
The only fair comparison is expected value (EV): the bonus amount minus the expected loss from wagering it through, then discounted by how likely you are to clear it. A bigger headline bonus with heavy wagering can be worth less than a smaller offer with easy terms. This tool runs both offers through the same maths — match, wagering, game contribution, RTP, max-cashout cap and clear-through chance — so you're comparing like with like.
What makes one bonus better than another?
Lower wagering, higher game contribution, higher RTP, a generous (or no) max-cashout cap, and a larger effective bonus all push EV up. A 200% bonus with 60x wagering and a 5x cashout cap is often worse than a 100% bonus with 25x wagering and no cap — especially once your realistic chance of finishing the rollover is taken into account.
Does the bigger bonus always win?
No. The headline percentage is marketing. What matters is how much of that bonus survives the wagering requirement and any cap on winnings, and whether you can realistically clear it before your balance runs out. This tool exists precisely to catch offers that look huge but are mathematically poor.
What does the EV figure mean?
Expected value is the average outcome if you claimed the bonus and played through the wagering many times over. Positive EV means the offer is, on average, worth claiming; negative EV means the expected cost of clearing it outweighs the bonus. It's a long-run average, not a guarantee for any single session.