Offer value explained
The number in the headline is the face value. What you can expect to keep is smaller.
By Ryan Jessop. Last checked .
Key takeaways
- Face value: what is advertised.
- Average value: face value less the cost of conditions.
- Wager-free spins: about 96% of face.
- 10x bonuses: about 60%.
The short answerAverage value is face value multiplied by the game's RTP, less the average cost of any wagering.
The method
- Take the face value: spins × spin value, or the bonus.
- For spins, multiply by the RTP (about 96%).
- For bonus money, subtract wagering × house edge.
- What is left is the average value.
Five offers valued
| Offer | Face value | Average value | Share kept |
|---|---|---|---|
| PlayOJO: 80 spins | £8 | £7.70 | 96% |
| Coral: 100 spins | £10 | £9.60 | 96% |
| Ladbrokes: 500 spins | £50 | £48 | 96% |
| 10bet: £25 bonus | £25 | £15 | 60% |
| Casumo: £100 bonus | £100 | £60 | 60% |
At a 96% RTP, if completed. One attempt can end anywhere.
What the average hides
The spread. A batch of spins can return nothing or many times its value; a wagered bonus can run out before the requirement is met.
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A worked example
- 10bet gives a £25 bonus: face value £25.
- Wagering is 10x: £250 of stakes.
- At a 96% RTP the house edge is 4%: £250 × 4% = £10.
- Average value: £25 − £10 = £15.
Why the RTP matters
On a 94% slot the same wagering costs £15 and the average value falls to £10. The game you clear a bonus on changes what it is worth.
Offer terms dated 5 October 2026, from each casino's published conditions. Other details are reported by independent reviews. How we judge offers. 18+. Free help: 0808 8020 133 or safer gambling.
Frequently asked questions
What is an offer's real value?
Face value less the average cost of its conditions.
Why are spins worth 96%?
That is a typical slot RTP.
Why are 10x bonuses worth 60%?
Wagering costs about 40% on 96% slots.
Is that what I will get?
No; it is a long-run average.