Think of any casino bonus as a short-term loan you repay in wagered stakes. Paste in the small print from an offer and this tool returns the real expected value, the clearing time and a Faders verdict before you move a single euro into the cashier.
Within the market median. Worth claiming if the terms are also clean.
Bonus you get is the smaller of (deposit times match%) and the maximum cap. Total wagering is (bonus, or bonus plus deposit, depending on the basis) multiplied by the clearing multiplier and divided by the game weighting. Expected house take is wagering multiplied by (1 minus RTP). Net EV is simply the bonus minus the expected house take.
Rule of thumb benchmarks: a bonus-only 25x or lower is excellent; 30-35x sits on the market median; 40x and up is a flag. Switch the basis to deposit plus bonus and you can add a full notch of pain to that scale. Live-casino and table-game weightings quietly turn almost every headline figure into a trap.
The clearing-time read-out assumes 20 spins per minute at the max bet you entered. Treat it as the shape of the math the terms imply, not as personal advice.
The banner carries the headline, and the small print carries the truth. This calculator peels the marketing layer off any bonus and shows what you can realistically expect to walk away with. When the readout says "Avoid" it is not a suggestion, it is the math speaking. When it says "Excellent" you are looking at one of the roughly one-in-ten offers that actually pays back more than it costs you to clear.
The calculator exists to settle one question every player should ask before claiming a promotion: once the wagering is honoured, what is this bonus really worth? No probability theory, no messy spreadsheet. You feed six simple inputs into the panel on the left and a verdict with hard numbers appears on the right in under a second.
After the inputs settle, four core numbers tell you the story. The first is the expected value, which is the mathematical average of what the bonus returns net of wagering losses. A positive figure means the offer pays more than the theoretical house edge takes back; a negative figure means the bonus is a slow drain. The second is the total wagering amount in your currency, which is the volume of bets required to clear the requirement. The third is the estimated clearing time, worked out from your max-bet cap and a standard pace of roughly 500 spins per hour. The fourth is the Faders verdict label (Excellent, Good, Fair, Flag or Avoid) which sums up the first three in one word.
Casino marketing teams are paid to make every bonus look generous. "300% up to 3000" sounds like a gift until you spot the 50x wagering, the 5 max-bet cap and the 92% RTP slot list the offer is tied to. On paper the promotion hands you 3000 in play money. Mathematically, by the time wagering is complete, most of it is back on the operator's balance sheet. The Faders calculator does the arithmetic the small print tries to hide and returns the honest value in a couple of seconds.
Always key in the exact figures from the terms, not the numbers on the banner. The banner shows the best case; the terms show the truth. If a promotion wagers on deposit plus bonus (D+B), the requirement is roughly twice as painful as a bonus-only (B) deal at the same multiplier, so pick the right basis. If you plan to clear on blackjack or video poker rather than slots, remember that most operators credit table games at 10% or even 0% toward wagering; the tool defaults to slots because that is where about 90% of bonuses are actually played, but you should still check the game-contribution table before depositing. Finally, when the verdict lands on "Flag" or "Avoid", a deposit without the bonus and plain cash play almost always works out cheaper over the same session length.
A handful of promotions sit outside the wagering-requirement model. Free spins with no wagering on winnings are effectively a direct cash gift, so they need no arithmetic. Cashback deals refund a slice of losses rather than top up the balance; set the match percentage to 0% and treat the refund rate as a separate informal boost. Tournament leaderboards and mission ladders depend on where you finish relative to other players and cannot be reduced to one number. For every other bonus type, from classic welcome packs to high-roller reloads, the calculator gives you the honest number the fine print leaves out.