Slot RTP is calculated when software providers simulate millions of spins in order to create a useful sample size.
Let’s say they do this over 100,000 spins by betting $1 a spin; this means wagering $100,000 in total. If they discover at the end of the simulation that they have $96,000 on hand, that slot is deemed to have 96% RTP.
But that doesn’t mean that you’ll end up with $96 if you wager $100. It’s impossible to predict short-term results like that.
🔍 Example of RTP over 100,000 Spins
For example, imagine a slot is tested over 100,000 spins with a bet of $1 per spin. This means the total amount wagered in the simulation is $100,000.
If the simulation results in $96,000 returned, the slot is said to have an RTP of 96%.
Importantly, this does not mean that you will get $96 back if you bet $100 in a short session. Short-term results are highly variable, and it’s perfectly possible to win more or less than the expected RTP.
The key takeaway is that the longer you play, the more your results are likely to approach the theoretical RTP. This is why RTP is a useful measure for comparing games, but it is not a predictor of what will happen in a single session.