In blackjack, “double down” is when you double your initial bet in exchange for just one more card. It’s a powerful move — but only if you know when to use it.
Once you double down:
You cannot hit again.
You get only one extra card.
You must match your original bet.
When Should You Double Down in Blackjack?
Here are the best situations to double down:
🔹 1. When You Have 11
If you’re holding a total of 11, doubling down is almost always the right move — especially if the dealer shows a low card (2 to 10). You have a high chance of hitting 21 or close to it.
🔹 2. When You Have 10
Double down if you have 10 and the dealer shows a lower card (2–9). You’re likely to beat the dealer if you get a high card.
🔹 3. When You Have 9
Double down if the dealer shows a 4, 5, or 6. This is a weaker dealer hand and gives you the edge.
🔹 4. On Soft Hands
A “soft” hand includes an Ace counted as 11. For example:
A-2 to A-7 vs. dealer 4, 5, or 6 – double down!
When NOT to Double Down
Avoid doubling down when:
You have a total over 11.
The dealer is showing a 10 or Ace.
You have a soft hand and the dealer has a high card.
You’re unsure or uncomfortable with the rules.
🃏 What Are Soft and Hard Hands?
Soft Hand = Includes an Ace counted as 11. E.g., A-6 (soft 17).
Hard Hand = No Ace or Ace counts as 1. E.g., 10-7 (hard 17).
Double Down Rules in Online vs. Land Casinos
Most casinos (online or physical) allow you to double down only:
On first two cards
After splitting (some casinos)
On specific totals like 9, 10, or 11
Always check the table rules.
Basic Blackjack Double Down Strategy Chart
| Your Hand | Dealer’s Card | Action |
|---|---|---|
| 11 | Any (except Ace) | Double Down |
| 10 | 2–9 | Double Down |
| 9 | 3–6 | Double Down |
| A-6 | 3–6 | Double Down |
Expert Tip:
Always double down in single deck blackjack more aggressively than in multi-deck games. The fewer the decks, the better the odds for you.
FAQ:
Q1: What does double down mean in blackjack?
It means doubling your bet in exchange for receiving only one additional card.
Q2: When is the best time to double down in blackjack?
When your hand totals 10 or 11 and the dealer shows a weak card (2–6).
Q3: Can I double down after splitting cards?
Some casinos allow it; always check table rules before playing.
Q4: Is double down a good strategy for beginners?
Yes — if used wisely and only when you understand the odds.
Q5: Can I double down in online blackjack?
Yes, most online blackjack games allow doubling down, similar to land-based casinos.