Volatility, also called variance, describes how a slot’s returns are spread out: low volatility means frequent small wins, high volatility means long quiet spells broken by rarer, larger ones. Two games with the same RTP can feel completely different on your phone, and volatility is the reason.
Volatility measures the swing of results, not how much a slot returns overall.
Low-volatility slots pay little and often; high-volatility slots pay rarely but can pay more.
With a small budget, high volatility makes it more likely you run out before a feature lands.
Studios publish a rating; some games show it in the info screen inside the app.
Also called
Variance
Scale
Low, medium, high (sometimes very high)
Measures
How spread out wins are
Separate from
RTP
Where to check
Game info screen or developer’s page
What volatility means in a slot
Every slot has a paytable and a set of features that, between them, decide how often it pays and how much. Volatility summarises the shape of those payouts. A low-volatility game spreads its returns across many small wins; a high-volatility game holds back much of its return for rare bonus rounds and big symbol combinations.
Volatility is separate from RTP. RTP tells you the long-run average return; volatility tells you how bumpy the ride is on the way. It is closely linked to hit frequency, how often any win lands, and to max win, the ceiling on a single spin or feature.
Low vs high volatility: what a £20 session can look like
Picture two slots with the same 96% RTP and a £20 budget at 20p a spin, enough for 100 spins if nothing came back. The figures below are illustrations of typical patterns, not predictions.
Low volatility
High volatility
How often wins land
Frequently, often every few spins
Less often, with longer gaps
Typical win size
Small, often less than or near the stake
Mostly small, with rare large features
Balance movement
Drifts slowly, small ups and downs
Long declines, occasional sharp jumps
Chance of reaching the bonus round on £20
Higher
Lower; many sessions end first
Ceiling on a single feature
Usually modest
Often thousands of times the stake
Neither type is cheaper in the long run if the RTP is the same; the house keeps the same average share. High volatility simply makes results less predictable, so a small balance is more likely to run out before anything significant lands. Losses remain the likely outcome over time whichever you pick.
Volatility ratings of well-known slots
Published ratings from the developers give a useful comparison point:
Low:Starburst (NetEnt, 500x max win) and Blood Suckers both pay small amounts regularly.
Notice that Starburst’s ceiling of 500 times the stake is modest; low volatility and a lower max win usually go together.
Choosing by volatility when you play on a phone
Mobile sessions are often short: a few minutes on a commute or during a break. Low and medium volatility suits that pattern, because something usually happens within a handful of spins. High-volatility slots tend to need more spins to show their features, and their bonus rounds can run for a while, which matters if your connection drops in a tunnel.
The UK’s stake limits also shape things. Players aged 25 and over can stake up to £5 a spin and those aged 18 to 24 up to £2, and with spins lasting at least 2.5 seconds, a session on a high-volatility game can stretch on. Setting a budget and a reality check before you open the game helps keep it within what you planned; see bankroll management on mobile and UK stake limits on mobile slots.
Where to find a slot’s volatility in an app
Open the slot and tap the ‘i’, menu or settings icon.
Look for a volatility line or rating graphic near the top of the info screen; some studios show it as a row of icons or a meter.
If it isn’t shown, check the developer’s own game page or our slot pages, which list the published rating.
Read the paytable too: very large top prizes and feature-heavy rules point to higher volatility.
Ladbrokes spreads up to 500 spins across 10 days (50 a day at 10p after you play £10 on slots), and Coral gives 100 spins at 10p when you bet £10 on slots; neither puts wagering on spin winnings. 18+, new customers, selected games, terms apply.
Coral and Ladbrokes are both run by LC International Limited (Entain). If you already hold an account with one Entain brand, you may not be able to open a new account with another; check the terms before signing up.
Significant terms: 18+. New customers only, from 14/11/25 until further notice. Certain deposit methods excluded. Deposit and spend £10+ on slots for 50 free spins a day during the first 10 days after first deposit and registration (max 500, £0.10 each, selected games, claim before 23:59 each day, valid 7 days). No wagering. Prepaid cards, PayPal, Paysafe, Neteller, Skrill and Moneybookers deposits do not qualify. Restrictions and T&Cs apply. GamCare.org.uk
Read the Ladbrokes reviewLicence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.
Significant terms: 18+. New players only. Offer runs 01/10/2026 to 01/02/2027. Deposit (certain types excluded) and bet £10+ on slot games to get 100 free spins (selected games, £0.10 each, 48 hrs to accept, valid 7 days). No wagering on free spin winnings. Deposits by Neteller, PayPal, Paysafe, Skrill, prepaid cards and certain debit cards do not qualify. Restrictions and T&Cs apply. GamCare.org.uk
Read the Coral reviewLicence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.
18+. Gambling should be entertainment that costs money, not a way to make it. Set a deposit limit before you play: how to set limits. Free, confidential help: National Gambling Helpline 0808 8020 133.
Frequently asked questions
Is high or low volatility better?
Neither is better; they suit different preferences and budgets. Low-volatility slots pay small wins often, so a balance usually lasts longer and sessions feel steadier. High-volatility slots pay less often but can produce larger wins from features, which some players prefer even though many sessions end without one. With the same RTP, both cost the same on average over the long run. Pick the experience you enjoy and set a budget first. Our slots apps page groups popular games so you can compare.
What is the difference between volatility and RTP?
RTP is how much a slot pays back on average over a very long period; volatility is how unevenly that return arrives. Two slots can both have 96% RTP, yet one pays a little on almost every few spins while the other goes quiet for long spells before a large feature. RTP helps you judge long-run cost, and volatility helps you judge how a single session might feel. Both appear in many game info screens. See RTP for the cost side with pound examples.
Is volatility the same as variance?
Yes, in slots the two words are used interchangeably. Both describe how widely results spread around the average. Some developers say volatility, others say variance, and a few use their own scales, such as numbers from one to five or a row of icons in the game’s information screen. Whatever the label, the meaning is the same: higher ratings mean bigger swings, longer gaps between wins and usually a higher maximum win. Our casino app glossary lists other terms that studios phrase differently.
Do high-volatility slots pay out more?
Not on average. A high-volatility slot with a 96% RTP pays back the same share of stakes over the long run as a low-volatility slot with a 96% RTP. The difference is distribution: more of the high-volatility game’s return comes from rare, larger wins, so most sessions return less and a few return much more. That is why the bigger headline maximum wins belong to high-volatility games. See max win for how those ceilings work and how likely they are.
Which volatility is best for free spins?
With a fixed number of free spins, lower volatility tends to give a steadier, more predictable result, while higher volatility gives a wider spread, with many small outcomes and the occasional larger one. Most welcome spins are locked to selected games, so you rarely get to choose. Coral’s 100 spins and Ladbrokes’ daily spins are both 10p each on selected slots, with no wagering on winnings. 18+, new customers, terms apply. Our page on no wagering free spins apps explains how these offers work.
Can I change a slot’s volatility?
No, volatility is built into a slot’s maths and features, so you can’t adjust it in the app. Lowering your stake doesn’t change volatility either; it scales every win and loss down in proportion, though it does make a budget last for more spins. Some slots include a choice of feature modes with different volatility, such as picking more spins at lower multipliers, and the game’s rules describe those options. Feature buy, which some games offer elsewhere, isn’t available to players in Great Britain, as explained under bonus buy.
Gambling can be addictive. Free, confidential help is available 24 hours a day from the National Gambling Helpline on 0808 8020 133. Get support from GamCare or NHS gambling support, or block yourself from all UK-licensed gambling sites with GAMSTOP.
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