Roulette, blackjack and table games
What's the best roulette bet if I want the lowest house edge?
Direct answer
With standard single-zero roulette, ordinary bets have a house edge of 1/37 ≈ 2.70%. With a true “la partage” rule on even-money bets, that edge can fall to about 1.35%.
How to use this answer
This answer is based on the mathematical principle or published rule identified in the source below. If the question involves a live betting market, confirm its settlement definition before applying it to a specific bet.
On standard single-zero roulette, standard inside and outside bets have the same 2.70% house edge; favourable la partage/en prison rules can reduce even-money-bet edge to 1.35%.
Separate the game’s mathematical probabilities from the casino’s house procedure. The odds may be calculable even where split, surrender, side-bet or payout policies differ between tables.