What the question really asks
“What percentage of hands win?” has no single answer, because it depends on the total you hold, the dealer’s upcard and whether you stand or draw. A fair way to compare totals is to ask: if a player stands on a given hard total, how often does that hand beat the dealer, tie, or lose, averaged across the dealer’s possible upcards?
The table below answers that for standing on hard totals from 12 to 21. It is built from a direct calculation, not a simulation, with these assumptions: a very large number of decks (so cards are drawn independently), a dealer who stands on all 17s and hits 16 or less, upcards weighted by how often they appear, and dealer natural blackjacks treated as ordinary 21s. Real tables differ a little, so read the figures as close approximations.
Standing on each total
| Total held | Win | Push | Lose |
|---|---|---|---|
| 12 to 16 (any) | about 28% | 0% | about 72% |
| 17 | about 28% | about 14.5% | about 57% |
| 18 | about 43% | about 14% | about 43% |
| 19 | about 57% | about 13% | about 30% |
| 20 | about 70% | about 18% | about 12% |
| 21 | about 88% | about 12% | 0% |
Percentages are rounded and may not add to exactly 100.
Reading the table
Hard 12 to 16 all look the same when standing. The dealer must finish with at least 17, so a stood-on total below 17 can only win if the dealer busts. The dealer’s overall bust chance is roughly 28%, and that is the winning share for every one of these totals. These hands never tie, because the dealer cannot finish on 12 to 16. That is why they are described as stiff hands: standing on them leaves the player relying on a dealer bust.
The jump at 17 and beyond. At 17 a stand begins to win when the dealer finishes lower, but the dealer reaches 17 or more most of the time, and a stood 17 still loses more than half the time. Each step upward adds the chance of beating a dealer who ends at a lower total. By 20 the player wins about 70% of the time when standing, and a stood 21 wins around 88%.
Pushes grow where totals are common. The tie chance equals the chance the dealer ends on that exact total. Dealers reach 20 more often than 18 or 19 because tens are so common, which is why a stood 20 pushes noticeably more often than a stood 18 or 19.
Standing is not always the decision
The table answers a narrow question about standing. It does not say how often a hand of that total wins when played correctly, because many of these hands should not be stood on at all. A hard 12 to 16 is often hit under basic strategy, because standing on 28% is poor against a dealer likely to make a hand, even though hitting risks busting. How to choose between the two, using the dealer’s upcard, is the subject of hard totals strategy, and the chance of going over 21 on a hit is covered by bust probability.
The table also averages over all dealer upcards. In practice the chance of winning a stood 16 is far above 28% against a dealer six and far below against a dealer ten. Averages hide a great deal of variation, which is why strategy depends on the dealer card and not just the player’s total.
Why this matters for expectations
A few lessons follow from the table:
- Stiff totals are common. Many starting hands land in the 12 to 16 range, so it is normal to be the underdog before the dealer has drawn.
- A win percentage is not the same as a hand’s value. Comparing hands properly needs the expected value, which weighs wins and losses by the amount bet and counts pushes as neither.
- The overall share of hands won by a basic-strategy player, a little over 42%, is lower than the strong entries in the table because many starting hands are weak, and some are lost by busting before the dealer plays.
Limits of these figures
- They assume an infinite deck. In real shoes and single decks, the exact numbers shift slightly, as the rules and the number of decks change dealer outcomes.
- They treat the dealer as standing on all 17s. When the dealer hits soft seventeen, dealer results change a little.
- They ignore the dealer natural effect on early settlement, and they exclude doubling, splitting and surrender decisions.
- They are long-run averages. Any particular hand is still decided by a few cards.
Nothing here is a route to profit: blackjack keeps a house edge even when every decision is correct. Gambling can lead to real losses, so only play with money you can afford to lose, and contact a local support service if gambling is causing you difficulty.