Casino bonuses explained
Wagering, game weighting, maximum bet and the maths behind casino offers.
Short answer
A bonus is worth what remains after wagering. Multiply the bonus by the wagering requirement to get the amount you must bet, then multiply that by the house edge to estimate the cost of clearing it.
Wagering, game weighting, maximum bet and the maths behind casino offers.
In this guide
Free Spins Explained: Types, Terms and Real Value
What decides the real value of a free spins offer, with a worked expected-value example and the rules in the UK, Sweden…
How No Deposit Bonuses Work: Terms and Real Value
What a no deposit bonus really gives you, the terms that decide whether you can withdraw anything, and how to estimate its…
Wagering Requirements Explained
What a wagering requirement really costs you, how to calculate it, and which regulators now limit it.
Last updated October 24, 2026 by the Gambling Hero editorial team.