Casino bonus calculator
Enter any bonus to see what it asks and what it is worth on average.
By Ryan Jessop. Last checked .
Key takeaways
- Stakes = bonus × requirement.
- UK maximum 10x.
- Average cost = stakes × house edge.
- Averages, not predictions.
The calculator
Wagering is capped at 10x in Britain. Averages assume stakes on games that count in full. A bonus can run out before wagering is complete.
Reading it
Stakes needed is bonus times requirement. Per day shows whether the deadline is realistic. Average value is the bonus less the long-run cost of wagering it.
Our partners' bonuses
| Bonus | Stakes | Days | Per day | Average value |
|---|---|---|---|---|
| 10bet: £25 | £250 | 3 | £83.33 | £15 |
| Casumo: £10 | £100 | 7 | £14.29 | £6 |
| Casumo: £100 | £1,000 | 7 | £142.86 | £60 |
| Coral: 100 spins | None | - | - | About £9.60 |
| PlayOJO: 80 spins | None | - | - | About £7.70 |
Background: wagering requirements.
More tools: Bonus finder and Compare casino bonuses.
Bonus types and guides: Mobile casino bonus UK, Free spins UK, No wagering casino bonus UK, New casino bonus UK and How to claim a casino bonus.
What it cannot tell you
Whether you will finish. The average hides a wide spread: some attempts end at zero, others well ahead. It also assumes every stake counts in full, which is true of most slots and rarely of table games.
Go deeper
Long-tail bonus pages: Trustly casino bonus UK, Casino bonus abuse rules and 50 free spins no deposit UK.
Bonus terms dated 5 October 2026, from each casino's published conditions. Other details are reported by independent reviews. How we check. 18+. Free help: 0808 8020 133 or safer gambling.
Frequently asked questions
How do I calculate wagering?
Bonus × requirement.
What is a bonus really worth?
Face value less the average cost of wagering.
What is the maximum requirement?
10x.
Is the result a prediction?
No.