Free, in-browser, nothing transmitted

Work out what an offer
is actually worth

Gambling offers are quoted in the language of generosity and priced in the language of arithmetic. These three tools convert between the two.

Was this result tampered with?

Provably Fair Verifier

Check a revealed server seed against the hash published before the roll, and recompute the outcome with HMAC-SHA256.

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Is this bonus worth taking?

Wagering Requirement Calculator

Turn a multiplier into required turnover and expected loss, adjusted for RTP and game weighting, with the break-even multiplier.

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What is this case really worth?

Case Opening EV Calculator

Enter a drop table to get expected value, effective RTP and house edge — plus a check that the odds sum to 100%.

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Why this site exists

Almost everything written about casino bonuses is written by someone paid when you accept one. That does not make it false, but it does mean the arithmetic is rarely the part being emphasised — and the arithmetic is where the answer lives.

A 40x wagering requirement is not a detail buried in the terms; it is the offer. A case's drop table is not marketing copy; it is a complete description of what the case pays. Both are knowable before you spend anything, and neither requires trusting a review.

Three questions worth answering first

  1. Was the result honest? The verifier answers this cryptographically — the only hard yes-or-no of the three. It checks that the operator committed to a server seed before your bet and did not change it afterwards.
  2. Is the bonus worth clearing? A wagering requirement is a cost, payable in house edge. The calculator prices it against the bonus so you can see which number is larger.
  3. What are the odds paying? Every drop table contains a house edge whether or not the site states it. The EV calculator extracts it.

If you want the reasoning behind all three rather than the tools themselves, the guide on evaluating case site offers sets out the method.

What these tools won't do

Worth being direct about the limits, since most of this category isn't:

Looking for promo codes?

This site doesn't publish them. For current platform-specific codes and offers, see HowCents — then come back and price whatever you find here before acting on it.

Note: Everything here is educational. Gambling carries real financial risk and most people lose money at it. If gambling is affecting your life, support is available at BeGambleAware.

Maintained by Jay Calder · Reviewed