Slot spin calculator
Enter a budget and a stake to see how many spins it buys, how long they take and what they cost on average.
By Ryan Jessop. Last checked .
Key takeaways
- Spins = budget ÷ stake.
- Minimum 2.5 seconds a spin in Britain.
- Average cost = total staked × house edge.
- Averages are not predictions.
The calculator
Counts only the spins your budget buys directly; wins extend play. Uses each slot's default RTP. Stakes are capped at £5, or £2 for ages 18 to 24.
Reading the results
Spins is how many your budget pays for outright. Time assumes the UK minimum of 2.5 seconds a spin with no pauses. Average cost is total stakes multiplied by the house edge: what those spins cost over the very long run, not what you will lose today.
Common budgets
| Budget | At 10p | At 20p | At 50p | At £1 |
|---|---|---|---|---|
| £10 | 100 | 50 | 20 | 10 |
| £20 | 200 | 100 | 40 | 20 |
| £50 | 500 | 250 | 100 | 50 |
| £100 | 1000 | 500 | 200 | 100 |
Planning a session? Read the bankroll guide and how to choose a slot.
Spins and volatility
On a high volatility slot, give the feature room to appear: 200 spins is a sensible floor. See high volatility slots.
Free spins in the same terms
| Offer | Spins | Equivalent budget at 10p |
|---|---|---|
| PlayOJO | 80 | £8 |
| Coral | 100 | £10 |
| Ladbrokes | Up to 500 | Up to £50 |
Background: How much is a free spin worth?, Slot RTP explained, Slot volatility explained and High RTP slots UK.
Worked examples
| Budget | Stake | Slot | Spins | Minimum time | Average cost |
|---|---|---|---|---|---|
| £10 | 10p | Starburst | 100 | 4 min 10 s | £0.39 |
| £20 | 20p | Big Bass Bonanza | 100 | 4 min 10 s | £0.66 |
| £50 | 25p | Gates of Olympus | 200 | 8 min 20 s | £1.75 |
The average cost looks small because it covers only the spins your budget buys once. In practice wins are re-staked, so a session stakes more than the budget and costs more on average. The calculator gives the floor, not the total.
What it cannot tell you
Whether you will win. The spread around the average is wide, and wider on high volatility slots. Use the result to choose a stake and a time, not to forecast a balance.
Slot figures are developers' published defaults, each confirmed against two sources; your casino may run a lower RTP. Offer terms dated 5 October 2026. How we check. 18+. Free help: 0808 8020 133 or safer gambling.
Frequently asked questions
How many spins does £20 buy?
100 at 20p; 200 at 10p.
How long do 100 spins take?
At least 4 minutes 10 seconds.
What does average cost mean?
Total staked multiplied by the house edge.
Does it predict my result?
No.