Classic 21, Live Dealers & Multiple Variants - Top UK Blackjack Sites 2025
T&Cs Apply | 18+
T&Cs Apply | 18+
T&Cs Apply | 18+
Follow mathematically optimal plays for every hand combination to minimize house edge.
Generally hit on 11 or less, and on soft hands (with Ace) when dealer shows 9, 10, or Ace.
Stand on hard 17 or higher. Stand on soft 19 or higher. Consider dealer's up card.
Double on 11 against dealer 2-10. Double on 10 against dealer 2-9. Maximize winning hands.
Always split Aces and 8s. Never split 10s or 5s. Other pairs depend on dealer's card.
Avoid insurance bets - they increase house edge. Side bets are fun but have higher house edge.
| Variant | Decks | Special Rules | House Edge |
|---|---|---|---|
| Classic Blackjack | 1-8 | Standard rules | 0.5% |
| European Blackjack | 2 | Dealer stands on soft 17 | 0.39% |
| Atlantic City | 8 | Late surrender allowed | 0.35% |
| Spanish 21 | 6-8 | No 10s, bonus payouts | 0.76% |
| Pontoon | 8 | Different terminology | 0.38% |
With perfect basic strategy, house edge is typically 0.5% or less - one of the best odds in the casino.
Natural blackjack (21 with first two cards) occurs approximately 4.8% of the time.
Dealer busts about 28% of the time. More likely to bust when showing 4, 5, or 6.
While not illegal, card counting is discouraged. Online RNG games shuffle after each hand.
Bet on your first two cards being a pair. Pays up to 30:1 for suited pairs.
Combines your two cards with dealer's up card for poker hands. Pays up to 100:1.
Bet that dealer has blackjack when showing Ace. Pays 2:1 but increases house edge.
Bet on dealer busting with specific cards. Higher payouts for more cards in bust.
Gambling should be entertaining. Please play responsibly and only bet what you can afford to lose.
18+ Only. T&Cs Apply. New Players Only. Min deposit required.