RTP & house-edge calculator
Turn a headline RTP into the expected cost of a real session.
Expected loss is a long-run average from the house edge; short sessions vary widely with volatility. 18+ · play responsibly.
How to use it
Enter a game's RTP, your stake per spin and the number of spins you plan to play. The calculator converts RTP into the house edge, then shows how much you will wager in total and the expected loss over that many spins.
What RTP and house edge mean
RTP (return to player) is the share of all wagers a game pays back over millions of spins. House edge is simply 100% minus the RTP, the casino's long-run margin. A 96% RTP means a 4% edge, so across €1,000 of total bets the game keeps about €40 on average.
Crucially, this is a long-run figure. Over a few hundred spins your actual result is dominated by variance, which is why players win in the short term even though the edge never changes.
Why it matters
Comparing house edge across games tells you which ones cost less to play for the same stake and session length. Pair it with the bankroll & session calculator to size your bets, and read bankroll management basics for the full picture.
