Basic Strategy for Hard Hands

Welcome to part of our strategy guide here at LegalOnlineBlackjack.com. Hard hands are the most common type of hand you will encounter at a blackjack table. They make up the majority of all starting hands and include every two-card combination that does not contain a flexible Ace — as well as any hand where the Ace must count as 1 to avoid busting. Getting hard hand decisions right is the single most important component of basic strategy, and the good news is that the decisions are systematic and learnable.

This page covers the correct play for every hard hand total from hard 5 through hard 20, with explanations for the reasoning behind each decision. For a quick visual reference, see our Basic Strategy Chart. For academic background on how these decisions were derived, see Wikipedia's section on blackjack basic strategy.

What Is a Hard Hand?

A hard hand is either:

A hand with no Ace at all (e.g., 8 + 7 = hard 15)
A hand with an Ace that must count as 1 to avoid busting (e.g., Ace + 7 + 9 = hard 17, because counting the Ace as 11 would give 27)

Hard hands carry bust risk when hit — that is what makes them "hard." The strategic challenge is knowing when the gain from hitting outweighs the bust risk, and when standing is the better option even on a relatively low total.

The Full Hard Hands Strategy Table

Hard Total	2	3	4	5	6	7	8	9	10	A
Hard 5–8	H	H	H	H	H	H	H	H	H	H
Hard 9	H	D	D	D	D	H	H	H	H	H
Hard 10	D	D	D	D	D	D	D	D	H	H
Hard 11	D	D	D	D	D	D	D	D	D	H
Hard 12	H	H	S	S	S	H	H	H	H	H
Hard 13	S	S	S	S	S	H	H	H	H	H
Hard 14	S	S	S	S	S	H	H	H	H	H
Hard 15	S	S	S	S	S	H	H	H	R	R
Hard 16	S	S	S	S	S	H	H	R	R	R
Hard 17+	S	S	S	S	S	S	S	S	S	S*

H = Hit | S = Stand | D = Double (if not allowed, Hit) | R = Surrender (if not allowed, Hit) | *Rs = Surrender hard 17 vs Ace if available

Hard 5 Through Hard 8 – Always Hit

These low totals are hit against every dealer up card, no exceptions. You cannot bust on a single card (the highest single card value is 11 for an Ace, and 8 + 11 = 19 — still under 21). More importantly, there is virtually no scenario where standing on these totals wins without improvement.

Keep hitting until you reach a total that warrants a different decision. If you hit a hard 5 and receive a 3 (now 8), hit again. If you then receive a 6 (now 14), check the chart for hard 14 against your dealer's up card.

Hard 9 – Hit or Double

Hard 9 is the first total where doubling down enters the picture, but only selectively.

Double against dealer 3, 4, 5, 6: The dealer is in the weak zone — statistically likely to bust. Doubling here puts maximum money in play at an advantageous moment. Even if you receive a poor card on your double, the dealer's high bust probability compensates.
Hit against dealer 2, 7, 8, 9, 10, Ace: Against stronger dealer cards, the mathematical edge of doubling disappears. Simply hit and hope to improve your total.

Example: You have 4 + 5 (hard 9) and the dealer shows a 5. Double. You are in a strong position — the dealer is weak and a 10-value card on your double gives you 19.

Hard 10 – Double Most of the Time

Hard 10 is one of the best doubling hands in blackjack. There are 16 cards in a standard deck worth 10 points, giving you a roughly 31% chance of landing on 20 — a powerful total.

Double against dealer 2 through 9: A wide doubling range. Against all these dealer cards, the math favors putting more money in play.
Hit against dealer 10 or Ace: When the dealer is strong, the edge of doubling narrows enough that simply hitting becomes the better play. You are still likely to need to hit again anyway if you receive a low card.

Hard 11 – The Best Doubling Hand

Hard 11 is the strongest doubling hand in standard blackjack. Any 10-value card (31% of all cards) gives you 21. Even cards like 9, 8, and 7 give you strong totals of 20, 19, and 18 respectively. The only hand that beats you when the dealer is showing a strong card is a dealer blackjack — and basic strategy still calls for doubling in most situations.

Double against dealer 2 through 10: Double down confidently. Hard 11 is the highest expected-value doubling situation in the game.
Hit against dealer Ace: The Ace changes the math. The dealer has a meaningful chance of having blackjack or making a strong hand, which reduces the expected value of doubling just enough that hitting produces better results over time.

Hard 12 – The First Tricky Standing Decision

Hard 12 is where many beginners make their first significant strategic error — either always standing out of bust fear or always hitting regardless of the dealer's card.

Stand against dealer 4, 5, 6: These are the dealer's weakest up cards, with a meaningful probability of busting. Standing on 12 makes sense here because you let the dealer take the risk of busting.
Hit against everything else (2, 3, 7, 8, 9, 10, Ace): Against a dealer showing 2 or 3, the dealer makes a strong hand often enough that your 12 needs to improve to have a realistic chance of winning. Against 7 through Ace, the dealer is even stronger — hitting is clearly necessary.

The decision to hit 12 against a dealer 2 or 3 surprises many players. Accept that it is correct and commit to it.

Hard 13 and Hard 14 – Stand Against Weakness

These hands follow the same general principle as hard 12 but with a slightly wider standing range:

Stand against dealer 2 through 6: The dealer's weak zone extends to include the 2 here. When the dealer shows 2 through 6, standing is correct — you are waiting for the dealer to bust.
Hit against dealer 7 through Ace: A dealer showing 7 or higher is likely to make a strong hand. Your 13 or 14 will not win a showdown against 17–21, so you must improve.

Hard 15 and Hard 16 – The Most Difficult Hands

These are the most difficult hands in blackjack and the source of more lost money from incorrect decisions than any other range. Neither total is strong enough to win most showdowns, but both carry significant bust risk if you hit.

Stand against dealer 2 through 6: Let the dealer bust. You are not winning this hand by improving to 19 or 20 as often as you would like — but the dealer is going to bust a substantial percentage of the time when showing a 2 through 6.
Surrender hard 15 against dealer 10 or Ace (if available): When surrender is an option, it is the correct play here. Losing half the bet is better than the expected full loss of playing out a hard 15 against a dealer's 10 or Ace.
Surrender hard 16 against dealer 9, 10, or Ace (if available): Same reasoning — surrender saves money compared to playing it out in these unfavorable matchups.
Hit hard 15 and 16 against dealer 7 and 8 (when not surrendering): Against these moderate dealer cards, you have no good options. Hit and hope for the best. The math says hitting loses less than standing over time.

Hard 16 against a dealer's 10 is statistically the worst hand in blackjack. You lose more than 50% of the time no matter what you do — which is exactly why surrender exists and why using it here is correct.

Hard 17 Through Hard 20 – Always Stand

Stand on every hard 17 through 20 against every dealer card, with one narrow exception:

Hard 17 against dealer Ace: If surrender is available, surrendering hard 17 against a dealer Ace is the correct play. If surrender is not available, stand.
Hard 18 through 20: Stand unconditionally against all dealer cards. These are strong hands — do not risk busting them.

The temptation to hit hard 17 against a dealer's strong card (10 or Ace) is understandable — 17 feels vulnerable. But hitting hard 17 risks busting on any card 5 through King, and the bust risk outweighs the potential gain in all cases except when surrender is available.

The Logic Behind Hard Hand Decisions

The common thread across all hard hand decisions is this: when the dealer is weak (2 through 6), maximize your chances by doubling when possible and standing to let the dealer bust. When the dealer is strong (7 through Ace), you must take action — either improve your hand by hitting or, when the situation is truly dire and surrender is available, cut your losses at 50%.

For a complete visual reference combining hard hands, soft hands, and pairs, see the Basic Strategy Chart. For the corresponding soft hand decisions, see Basic Strategy for Soft Hands.