table of what to do in each blackjack situation

Your hand Dealer's face-up card
2 3 4 5 6 7 8 9 10 A
Hard totals (excluding pairs)
17-20 S S S S S S S S S S
16 S S S S S H H SU SU SU
15 S S S S S H H H SU H
13-14 S S S S S H H H H H
12 H H S S S H H H H H
11 Dh Dh Dh Dh Dh Dh Dh Dh Dh H
10 Dh Dh Dh Dh Dh Dh Dh Dh H H
9 H Dh Dh Dh Dh H H H H H
5-8 H H H H H H H H H H
Soft totals
2 3 4 5 6 7 8 9 10 A
A,8 A,9 S S S S S S S S S S
A,7 S Ds Ds Ds Ds S S H H H
A,6 H Dh Dh Dh Dh H H H H H
A,4 A,5 H H Dh Dh Dh H H H H H
A,2 A,3 H H H Dh Dh H H H H H
Pairs
2 3 4 5 6 7 8 9 10 A
A,A SP SP SP SP SP SP SP SP SP SP
10,10 S S S S S S S S S S
9,9 SP SP SP SP SP S SP SP S S
8,8 SP SP SP SP SP SP SP SP SP SP
7,7 SP SP SP SP SP SP H H H H
6,6 SP SP SP SP SP H H H H H
5,5 Dh Dh Dh Dh Dh Dh Dh Dh H H
4,4 H H H SP SP H H H H H
2,2 3,3 SP SP SP SP SP SP H H H H

The above is a basic strategy table for 3 or more decks, dealer stands on soft 17, double on any 2 cards, double after split allowed, dealer peeks for blackjack, and blackjack pays 3:2. Key:

S = Stand
H = Hit
Dh = Double (if not allowed, then hit)
Ds = Double (if not allowed, then stand)
SP = Split
SU = Surrender (if not allowed, then hit)

% of bust if you hit

Hand Value % Bust If You Hit
21 100%
20 92%
19 85%
18 77%
17 69%
16 62%
15 58%
14 56%
13 39%
12 31%
11 or Less 0%

Rule Variations

Rule
Effect

Blackjacks pay 2 to 1 +2.27%
Five card Charlie 1 +1.46%
Suited blackjacks pay 2 to 1 +0.57%
Player 21-points is automatic winner +0.54%
Early surrender against ace
+0.39%

Player 21 vs. dealer blackjack is a push +0.37%
Blackjack tie pays 3 to 2 +0.32%
Early surrender against ten
+0.24%

5-card (or more) 21 automatically pays 2 to 1 +0.24%
Player may double on any number of cards +0.23%
Ace and 10 after splitting aces is a blackjack +0.19%
Player may draw to split aces
+0.19%

Six card Charlie1
+0.16%

Double Down Rescue +0.10%
Player may resplit aces
+0.08%

Late surrender against ten
+0.07%

777 pays 3 to 1 automatically +0.05%
777 pays 2 to 1 automatically +0.03%
Seven card Charlie1
+0.01%

Late surrender against ace +0.00%
Dealer must stop with six cards +0.00%
Late surrender after splitting
+0.00%

Split to only 3 hands -0.01%
No-peek: ace showing2 -0.01%

BB+13 -0.01%

OBBO4 -0.03%

Player and dealer cards dealt from separate shoes5 -0.06%
Player may double on 9-11 only
-0.09%

No-peek: ten showing6
-0.10%

Player may not resplit
-0.10%

European no hole card7 -0.11%
Player may not double after splitting
-0.14%

Player may double on 10,11 only
-0.18%

Player may not split aces -0.18%
Dealer hits on soft 17
-0.22%

Blackkjack pays 7-5 -0.45%
Blackjack pays 6-5
-1.39%

Player loses 17 ties
-1.87%

Blackjacks pay 1 to 1 -2.27%
Player loses 17,18 ties
-3.58%

Player loses 17-19 ties
-5.30%

Player loses 17-20 ties
-8.38%

Player loses 17-21 ties -8.86%
Dealer bust on 22 is a push -9.53%