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Bonus buy calculator

A bonus buy costs its price times your bet and pays back that price times the buy's RTP on average. Ten 100x buys at £1 cost £1,000 and, at 96.5% RTP, return about £965, an average loss of £35. In the 16,582 bonuses we have opened live, 29% paid 100x or more, so most bonuses paid back less than a standard 100x buy. Enter your own buy below.

Average loss on these buys

35

10 buys at 100 each cost 1,000 and pay back about 965 on average.

From our recorded bonuses

29% paid 100x or more

Of the 16,582 bonuses opened in Johnessy's live hunts, that share paid at least the price of this buy. The rest lost money against it.

A bonus buy is priced to return slightly less than it costs. Bonus buys are not offered at casinos licensed in Great Britain.

How it works

  • Spent = bet × buy price × number of buys.
  • Average return = spent × the bonus buy RTP.
  • Paid back the price = the share of our recorded bonus opens that paid at least the buy price, as a multiple of the bet.

Frequently asked questions

Is a bonus buy worth it?
On average, no. A bonus buy is priced to pay back slightly less than it costs, usually 96% to 97% of the price. It is a faster and more volatile way to play, not a better one.
How do you calculate the cost of a bonus buy?
Price × bet × number of buys is what you spend. Multiply that by the buy's RTP for the average return. The difference is the average loss: ten 100x buys at £1 and 96.5% RTP lose about £35 on average.
How often does a bonus pay back a 100x buy?
In our recorded live hunts, 29% of 16,582 bonus opens paid 100x or more. The bonuses that pay big make up for the many that pay less than the price.
Can I buy bonuses in the UK?
No. Bonus buys are banned at casinos licensed by the UK Gambling Commission.

Related

Figures are long-run averages, not predictions, and this is not advice to play. Gambling is 18+ and can be addictive.