How online slots odds and rtps work?

Online slots are popular casino games that provide exciting gameplay and the chance to win big payouts. The RNG cycles through thousands of number combinations per second and each result corresponds to a certain reel position for the symbols. Every single spin has an equal chance of landing on any position on the reels. The RNG ensures random and unpredictable results on every spin. It means the outcome of one spin has no impact on the results of the next spin.

Slot odds and probability

On a slot machine with three reels and 10 symbols on each reel, the odds of hitting a specific winning combination would be 1 in 1000. This is because there are 10 x 10 x 10 = 1000 possible symbol combinations. But the chances are only theoretical. The RNG makes every single combination random for each spin. The probability of any particular symbol lining up is not affected by previous spins. So if you hit a jackpot symbol on one spin, the odds of hitting it again on the next spin remain 1 in 1000. Slot odds are therefore fixed but the randomness factor makes probability calculations almost irrelevant.

House edge

Online slots have a built-in house edge that ensures the casino profits over millions of spins. This house edge is derived from the slot’s RTP percentage. A slot with a 95% RTP has a house edge of 5%. This means for every $100 wagered on the slot, the casino aims to retain $5 in profits. Even with random outcomes, the math works out in the casino’s favor over many spins. But players still come out ahead by getting lucky in the short term with big payouts.

Hit frequency

Along with RTP, slots also have a hit frequency or the percentage of spins that produce a winning combination. Hit frequency indicates how often you expect to land winning spins and small payouts. Higher hit frequency slots deliver wins more frequently but the payouts are typically smaller. Low-hit frequency slots have fewer winning spins but the wins tend to be bigger. High RTP and high hit frequency are a winning combination for great slot play.


Slot volatility indicates the risk level and potential for big wins. Slots with low volatility offer payouts that are smaller in size but occur more frequently. The wins come steadily to extend your playtime. However, the payout potential is limited. High volatility slots feature bigger maximum wins but the payouts are less frequent. You encounter long dry spells without any big wins. High volatility is suited to players who withstand the risk with larger bets to pursue those elusive huge jackpots.

Max bet for jackpots                                                      

Most online slots have fixed jackpots that do not increase in size. However, Jet77 slot features progressive jackpots that grow over time as more players put money into the game. For progressive jackpots, you usually need to place the maximum bet to qualify for the full jackpot payout. Even on slots with fixed jackpots, the max bet opens up enhanced payouts and bonus features. So consider utilizing max bet, especially while playing with bonus funds to amplify your payout potential.

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