The Math Behind the Slots

When you sit down to play a slot machine, you are faced with beautiful animations, and the hope of a big win. However, beneath all of this flashy entertainment lies a complex mathematical engine. Two critical mathematical concepts dictate exactly how the game pays out: Return to Player (RTP) and Volatility (also known as Variance). Grasping these concepts is absolutely essential if you want to choose the right games and maximize your casino experience.

Defining the RTP Percentage

The Return to Player percentage is a theoretical mathematical figure which tells you the exact amount of cash a game will pay back to the gambling public over an extremely long period of time. For example, if a slot has an RTP of 96%, it means that theoretically, for every $100 wagered, the machine returns 96 dollars in winnings. The other 4 percent represents the casino‘s profit margin. It is incredibly important to remember that this math is based over a massive sample size, so it does not guarantee your short-term luck.

What is Slot Volatility?

While RTP tells you how much a slot pays back, the variance level explains the payout frequency. Volatility measures the risk level of the slot machine. A game with low variance will hit winning combinations constantly, but the payouts will be minimal. This style is ideal for those wanting to play a long time who hate massive losing streaks. On the other hand, an extreme risk slot can experience massive losing streaks where you lose constantly. However, when it finally does hit, the winnings can be absolutely massive.

• Find the paytable stats; a good standard RTP for digital games should be 96% or higher.
• You need deep pockets for high variance because you must survive the dry runs.
• Progressive jackpot slots typically run on the highest possible risk and terrible base RTPs.
• If you want to clear a casino bonus, stick to low variance slots to minimize your bankroll swings.

Matching Volatility to Your Bankroll: RTP vs Volatility

To help you decide, here is a comparison table that explains the differences between different volatility levels and who they are best for should be playing them.

In the end, the best slot does not exist. The best choice depends entirely on your risk tolerance and your budget. If you want a relaxing evening with constant action, find a low variance slot. If you are hunting for a life-changing sum of money and you can stomach the losses, then hit the extreme slots. Math is your best friend; know what you are playing!