Games / Learning
Blackjack Basic Strategy Chart and Practice
Explore hard totals, soft totals and pairs with expected values for hit, stand, double, split and surrender. Change dealer and player rules and practise random hands.
Blackjack Basic Strategy Chart and Practice: Computes expected values using an infinite-deck approximation, with US hole-card peek and late surrender after no dealer blackjack. Assumes one split into two hands, no resplitting, one card to split aces and even-money wins on split 21. The chart is for learning: basic strategy reduces but does not remove the house edge. It matches published multi-deck charts in nearly every cell, but does not claim single-deck exactness. Runs 100% locally in your browser with zero server file uploads.
- Category
- Health & sport tools
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- In your browser
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- Free · no sign-up
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- Ready to use
Runs entirely in your browser
A learning chart calculated with an infinite-deck approximation and US dealer peek. Basic strategy reduces but does not remove the house edge.
Assumes one split into two hands, one card to split aces, no resplitting, no insurance, and even-money wins on split 21. Expected values are net units per original stake, after a peek finds no dealer blackjack.
P uses stand as its fallback here. Hover, focus or tap a cell to inspect every allowed action's expected value.
Hard totals
| Your hand / dealer | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | A |
|---|---|---|---|---|---|---|---|---|---|---|
| Hard 4 | ||||||||||
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| Hard 20 | ||||||||||
| Hard 21 |
Soft totals
| Your hand / dealer | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | A |
|---|---|---|---|---|---|---|---|---|---|---|
| Soft 13 | ||||||||||
| Soft 14 | ||||||||||
| Soft 15 | ||||||||||
| Soft 16 | ||||||||||
| Soft 17 | ||||||||||
| Soft 18 | ||||||||||
| Soft 19 | ||||||||||
| Soft 20 | ||||||||||
| Soft 21 |
Pairs
| Your hand / dealer | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | A |
|---|---|---|---|---|---|---|---|---|---|---|
| A,A | ||||||||||
| 2,2 | ||||||||||
| 3,3 | ||||||||||
| 4,4 | ||||||||||
| 5,5 | ||||||||||
| 6,6 | ||||||||||
| 7,7 | ||||||||||
| 8,8 | ||||||||||
| 9,9 | ||||||||||
| 10,10 |
This infinite-deck chart matches published multi-deck charts in nearly every cell. Single-deck and two-deck games may differ: hard 8 versus 5–6; hard 9 versus 2; hard 11 versus ace; soft 13–14 versus 4; soft 15–16 versus 3; soft 18 versus 2; and pairs 6,6 versus 7 or 7,7 versus 8. Card composition and split limits can change further cells.
Practise a hand
For learning and entertainment. If gambling is causing harm, contact your national gambling help service.
Expected-value model
Each card value 1–9 has probability 1/13 and ten-valued cards have probability 4/13. Dealer and player continuations are evaluated recursively, choosing the allowed action with the highest net expected return. US peek conditions the dealer's hole card on no blackjack; double and split stakes are included in the expected value.
Chart comparison and responsible play
Published comparison: https://wizardofodds.com/games/blackjack/strategy/4-decks/ and infinite-deck analysis: https://wizardofodds.com/games/blackjack/appendix/1/ . The computed model retains its own recommendations at marginal differences rather than replacing them with a copied chart. For learning and entertainment. If gambling is causing harm, contact your national gambling help service.
How to use it
- Set soft-17, double-after-split, surrender and doubling rules.
- Read the three colour-coded tables; select a cell to inspect each allowed action's expected value.
- Deal a practice hand, choose an action and compare it with the chart.
Privacy & limitations
All expected-value calculations and practice hands run in your browser.
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Frequently asked questions
Why does soft 13 versus 5 say hit?
For infinite decks, hit has a slightly higher computed value than double here under both S17 and H17. Published finite multi-deck charts recommend double. Soft 15 versus 4 is another small S17 difference.
What about hard 11 versus ace?
The computed chart recommends hit under S17 and double under H17. The H17 advantage for double is small. Rule changes can affect marginal cells.
Is it exact for one or two decks?
No. Card removal, composition and split limits can change recommendations. The page lists cells that may differ in smaller-deck games.
Can I eliminate the house edge?
No. This is a learning chart, not a guarantee. If gambling is causing harm, contact your national gambling help service.
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