House Edge Calculator — Table Rules & Expected Loss Model
Audit the mathematical advantage of any blackjack table rule combination. Calculate exact baseline house edge, player RTP, and projected hourly losses.
Marginal Rule Impact Breakdown
Frequently Answered Questions
Why does a 6:5 payout increase the house edge so drastically? ▼
Natural blackjacks occur approximately once every 21 hands (4.8% frequency). Reducing the payout from 3:2 (1.5x) to 6:5 (1.2x) extracts 0.3 units of profit from every natural, adding +1.39% directly to the house edge.
How does the number of decks affect the mathematical expectation? ▼
Fewer decks concentrate card removal effects. With single deck, natural blackjacks occur more frequently (4.83% vs 4.75% in 8 decks) and doubling on 10/11 has higher success rates, reducing house edge by ~0.55%.
What is the impact of Dealer Hitting Soft 17 (H17)? ▼
When the dealer hits Soft 17, they will occasionally bust, but far more frequently improve to 18, 19, 20, or 21. This improves the casino expectation by +0.22% across all player totals.
This estimate uses the selected rule adjustments. It is not an audit of a live table. Verify payout, dealer soft 17 and split rules in the game.
Choose a platform
Partner links
Live blackjack: compare the rules of the selected table
Table selection guide → Visit 1win 18+ · Terms on site
Blackjack: check the selected game and its rules
Table selection guide → Visit Stake 18+ · Terms on siteCheck local availability and the exact table rules before playing. Offers depend on your country and account. Current terms are on the operator’s site.