KJ vs 54s: Odds & Interactive Calculator
| Hand | Win | Tie | Equity |
|---|---|---|---|
| KJ (King-Jack) | 59.4% | 0.7% | 59.8% |
| 54s (Five-Four Suited) | 39.9% | 0.7% | 40.2% |
Suited vs offsuit: KJ
| Matchup | Win | Tie | Equity |
|---|---|---|---|
| KJs | 61.3% | 0.7% | 61.7% |
| KJo | 58.8% | 0.7% | 59.1% |
How KJ vs 54s unfolds by street
King-Jack (KJ) is still ahead on 68% of flops against 54s, and the lead survives to the turn on 66%. 54s takes the lead on the other 32% of flops. These figures come from full board enumeration, not a simulation.
| Street | KJ still ahead | 54s flipped the lead |
|---|---|---|
| Flop | 68% | 32% |
| Turn | 66% | 34% |
Two unpaired hands with all four ranks live: KJ vs 54s. KJ wins 59.4%, 54s wins 39.9%, and 0.7% of boards chop. The favorite isn't running away with it — 39.9% of the time 54s pairs up first or backs into the better runout — but higher cards making higher pairs is enough to keep KJ in front.
Translate that into a decision and it's simple pot-odds math: counting split pots as half, KJ carries 59.8% equity and 54s 40.2%. Against a pot-sized shove you need about 33% to call and about 25% versus a half-pot bet — so 54s is comfortably priced in to get it all-in here.
How you play KJ vs 54s depends on which side you hold. With KJ you're not crushing, so keep the pot controllable and take the 59.4% edge to showdown when you can; with 54s, your equity is enough to continue with initiative but thin enough that bloating the pot out of position is a trap.
KJ vs 54s FAQ
Who wins KJ vs 54s preflop?
KJ (King-Jack) is the favorite, winning 59.4% of all runouts, while 54s (Five-Four Suited) wins 39.9%. The remaining 0.7% are split pots. Counting splits as half, KJ's preflop equity is 59.8%.
Does the KJ vs 54s probability change all-in preflop?
No. Once both hands are all-in preflop the odds are set by the cards alone — position, stack size and who bet first change nothing. The only thing that moves the number is suits: KJ's equity runs from 58.4% to 63.9% depending on suitedness and which suits the two hands share, which is why different sites quote slightly different figures. It does change once board cards are dealt (KJ leads on 68% of flops) and in multiway pots, where every extra caller takes equity from both hands.
Is KJ vs 54s a good spot to get all-in?
For KJ, yes — a 59.8% favorite should happily commit, especially with fold equity. For 54s at 40.2%, it depends on the price: enough to continue with initiative, but thin enough that stacking off out of position is usually a leak.
Does KJ hold up against 54s after the flop?
KJ is still ahead on 68% of flops and stays ahead through the turn on 66% of boards; 54s takes the lead on the other 32% of flops. These are exact figures from full board enumeration.
Run any matchup in the free equity calculator · AK VS QJ · AK VS QT · AQ VS KJ · AQ VS KT · AQ VS JT · AJ VS KQ
See also: hand-vs-range preflop equity — your hand against a real opening, 3-bet, or shove range.