Slot finder

Slot RTP calculator: expected loss per session

See what a session costs on average. Enter a bet, a pace and an RTP, or start from a slot to use its recorded RTP versions.

Around 500 is typical for manual play
Expected loss over the session
$40
Spins
1,000
Total wagered
$1,000
Paid back on average
$960
Cost per hour
$20
Expected loss of the same session at other RTPs
Same session atExpected loss
97%$30
96%$40
95%$50
94%$60
92%$80

An average over very many spins. One session can end far above or below it, and high volatility makes that spread wider.

How the calculation works

The calculator multiplies three numbers you control and applies the house edge.

Total wagered = bet × spins per hour × hours House edge = 100% − RTP Expected loss = total wagered × house edge

For example, $1 a spin at 500 spins an hour for 2 hours is $1,000 wagered. At 96% RTP the house edge is 4%, so the expected loss is $40, or $20 an hour.

RTP is a long-run average over a very large number of spins. A single session can end well above or below the expected figure, and the gap is usually larger on high volatility slots. Use the number to plan a budget, not to predict a result. See high RTP slots or slots with several RTP versions.

What each RTP costs per $1,000 wagered

The same session costs more on a lower RTP. Many slots are released in several RTP versions and the operator chooses which one to run, so the version matters as much as the game.

Average cost per $1,000 wagered at each RTP
RTPHouse edgeAverage loss per $1,000 wagered
98%2%$20
97%3%$30
96.5%3.5%$35
96%4%$40
95%5%$50
94%6%$60
92%8%$80
90%10%$100
88%12%$120

From 96% to 94% the average cost of the same $1,000 rises by half, from $40 to $60; at 88% it is $120, three times the cost at 96%. The calculator above does this for any bet, pace and session length.

How to find the RTP of the version you play

Open the game and its info or help screen: most studios print the RTP of the running version there. Our game pages list every version recorded for each slot, and the guide to RTP versions explains why one game can have several. To compare two games directly, use compare slots.

Questions

What does a 96% RTP mean?
Over a very large number of spins the game returns $96 of every $100 wagered and keeps $4. It says nothing about a single spin or a single session.
Why use spins per hour?
Because the cost of playing grows with the amount wagered, and fast play wagers more per hour. Around 500 spins an hour is typical for manual play; autoplay and turbo modes can be much faster.
How do I calculate the RTP cost of a slot session?
Multiply your bet by the number of spins to get the total wagered, then multiply that by the house edge (100% minus the RTP). $1 a spin for 1,000 spins at 96% RTP is $1,000 wagered and $40 lost on average.
Is 96% RTP good for a slot?
It is close to the middle of what studios publish today. What matters more is the version you actually play: the same game can run at 96% in one place and 94% or lower in another.
What is the house edge?
The share of every bet the game keeps over the long run: 100% minus the RTP. A 96% RTP slot has a 4% house edge.
Does a higher RTP mean I will win?
No. It lowers the average cost of playing. Any session can still end in a loss, and a lower RTP session can still end in a win.