Ladbrokes Bet £10, get up to 500 free spinsAd · 18+ · T&Cs apply
Coral Bet £10, get 100 free spinsAd · 18+ · T&Cs apply
PlayOJO No-wagering free spins on your first depositAd · 18+ · T&Cs apply
Casumo 50% match bonus up to £100Ad · 18+ · T&Cs apply
10Bet 100% bonus up to £25Ad · 18+ · T&Cs applyKey takeaways
- Bonus = deposit × match %, up to the cap.
- Wagering needed = bonus × requirement, capped at 10x in the UK.
- Free spins value = spins × spin value; expected return = value × RTP.
Deposit bonus and wagering calculator
Free spins value calculator
Compare two deposit bonuses
Casumo · 50% up to £100
bonus
to wager in 7 days
10Bet · 100% up to £25
bonus
to wager in 3 days
Casumo needs a £20 minimum deposit. Bonus amounts only; 18+, full T&Cs apply.
How the calculations work
Deposit bonus
The bonus is your deposit multiplied by the match percentage, up to the maximum. A 50% match on £50 gives £25. A 100% match up to £25 on £50 still gives £25, because of the cap.
Wagering
Multiply the bonus by the requirement. A £25 bonus at 10x needs £250 of bets. Divide by your stake to see how many spins that is: £250 at 50p a spin is 500 spins. Read more in our wagering requirements guide.
Free spins
Face value is the number of spins multiplied by the spin value. Average return applies the slot's RTP: 100 spins at 10p on a 96% RTP slot return £9.60 on average. Check the RTP in the game's info screen at your casino, as some slots run at different settings. Compare live offers on our free spins page.
Example: the offers we list
| Offer | Try these inputs | Result |
|---|---|---|
| Casumo | £200 deposit, 50%, £100 cap, 10x | £100 bonus, £1,000 of bets |
| 10Bet | £25 deposit, 100%, £25 cap, 10x | £25 bonus, £250 of bets |
| Coral | 100 spins at £0.10 | £10.00 face value |
| Ladbrokes | 500 spins at £0.10 | Up to £50.00 face value |
Want to link to this calculator from your own site? You're welcome to, at ir4.co.uk/tools/bonus-calculator/.
Frequently asked questions
How do I calculate a casino bonus?
Multiply your deposit by the match percentage, then cap it at the maximum bonus.
How do I calculate wagering?
Multiply the bonus by the wagering requirement. In the UK the requirement can't exceed 10x.
What is the expected value of free spins?
Number of spins × spin value × the slot's RTP. It's an average over many spins, not a prediction.