Last updated: 9 October 2026
Information
RTP Data explains the mathematics of casino games for information. It is not gambling or financial advice. Every house edge and probability assumes the rules stated alongside it; games with different rules have different numbers.
Long-run figures
House edge and RTP describe averages over a very large number of bets. They do not predict the result of any session.
Who may use the site
Adults aged 18 or over, where gambling is legal for them.
Calculator
The roulette calculator returns figures for the wheel, bet and stakes you choose.
Quoting our tables
Figures and short passages may be quoted with a credit to RTP Data and a link. Our articles and design are otherwise protected by copyright.
Changes
The version dated above is current. Contact: contact@rtp-data.website.