19+ only. Stake is not available in Ontario, the UK, the US, Australia and other countries. Full list.

Casino bonus rollover calculator

Value of a bonus = bonus − bonus × rollover × house edge. Updated 2026-09-11.

Expected value is the long-run average. A single bonus can end anywhere from bust to a big win; the formula tells you what you are paying for the ticket. Max-bet rules during rollover mean the full expected loss is usually paid.

Questions people ask

What is a fair rollover for a casino bonus?

Below 1 ÷ house edge: under 25x on a 4% slot, under 100x on a 1% game. Most welcome bonuses are 30x to 50x on slots, which is negative expected value.

Does rollover on deposit plus bonus matter?

Yes, it doubles the required wagering for a 100% match and therefore doubles the expected loss.

Playing from Canada (outside Ontario)?

Sign up to Stake with code CANDB and rakeback can be switched on from day one instead of waiting for Bronze: message Stake support with the affiliate username after you register. The code costs you nothing and it is how this site gets paid.

Sign up with CANDB Rules and giveaway terms

19+ (18+ in AB, MB, QC). Not for Ontario, the UK, the US, Australia or any restricted country. Gambling has a house edge; set a number before you deposit and stop at it.