WagerObserver

Wagering requirement calculator

Enter a bonus and its terms to see how much you'd need to bet before you can withdraw, and what the bonus is worth on average.

Edited by Jorge Romão. Last checked .

The requirement applies to

Slots usually count 100%. Table games often count less.

Shown in the game's help screen. 96% is typical for slots.

£200

to bet before you can withdraw

Average cost of those bets
£8.00
What the bonus is worth on average
£12.00

On average you keep more than half of the bonus.

How the maths works

  • Total to bet is the amount the requirement applies to, times the requirement, divided by the game's contribution.
  • Average cost is that total times the house edge: 4% on a game with a 96% return to player.
  • What the bonus is worth is the bonus minus the average cost.

What it can't tell you

  • Your own result. The figures are averages over many players. Over a few hundred pounds of spins, anything can happen.
  • Caps and maximum bets. A winnings cap or a maximum stake rule can make a bonus worth less than the calculator shows. Check the terms for both.
  • The exact return. The same slot can run at different returns at different casinos. Check the game's help screen before you play.

Gambling costs money on average, which is exactly what the calculator shows. Treat any bonus as a discount on entertainment, never as a way to make money. If it stops being fun, the National Gambling Helpline is free on 0808 8020 133.

Want to know why 10x matters? Read the UK 10x wagering cap, explained.