The best hairstyles for a square face follow one rule: keep the hem and the volume off the jaw line. On a square face the jaw is nearly as wide as the cheekbones, so a straight line at that level, whether the end of a cut or a band of fullness, makes the lower face read wider. Put the line above the jaw or below it, start layers around the cheekbones, and use diagonals to break the straight edges.
Face shape is a styling framework, and these are conventions about how lines read, not laws. If you are not yet sure your face is square rather than round, the Face Shape Calculator settles it with four measurements, and round vs square explains the difference.
The rule: no straight line at the jaw
The eye follows lines, and a horizontal line makes the place where it sits read wider. On round and oval faces the jaw is clearly narrower than the cheekbones, so a line there is not much of a problem. On a square face it measures 90 to 100 percent of the cheekbone width, so a blunt hem at jaw level lines up with the widest part of the lower face and frames it like the bottom of a box.
The same logic applies to volume. Hair that flips out or fans out at the jaw adds width exactly where the face already has it. Volume higher up, at the crown or around the cheekbones, or lower down, around the collarbones, leaves the jaw line alone.
Above the jaw or below it, never on it.
Where the hem should land
| Where the cut ends | How it reads |
|---|---|
| Above the jaw (cropped, pixie, ear-length) | Works with height at the crown and soft pieces in front of the ears |
| At the jaw, blunt | The hardest length: a straight line across the widest part of the lower face |
| At the jaw, angled or textured | Workable: the angle and broken ends soften the line |
| Just below the jaw to the collarbone | One of the easiest lengths: the line falls below the jaw |
| Past the shoulders | Works with layers; one-length, flat hair adds two long straight sides |
The bob has its own guide, where a bob should end, because it is the length where a centimeter changes the result.
Where the layers should start
Layers decide where the volume goes. For a square face, the useful starting point is around the cheekbones, with face-framing pieces falling from cheekbone level to past the jaw. They draw soft diagonal lines down the sides of the face and cross the jaw corner instead of stopping at it.
Layers that start at the jaw and are styled to flip outward do the opposite: they add a ring of volume at jaw level. Very short layers concentrated at the crown, with long flat lengths below, can also leave the jaw corners exposed between two blocks of hair. Ask for long layers with the shortest face-framing piece at about the cheekbone.
Bangs for a square face
The forehead is about as wide as the cheekbones, so bangs can either help or add a second box line. Long curtain bangs that part in the middle and open at the cheekbones cover the forehead corners and add a diagonal. Side-swept bangs do the same with one longer diagonal. Wispy, see-through bangs soften the forehead line without adding a solid block.
Heavy, blunt bangs cut straight across the brows draw a horizontal at the top of the face to match the one at the jaw. They can look deliberate and graphic, but they make the outline read more square. Bangs by face shape compares the bang types for every shape, including how forehead height changes the right length.
Part, texture and short hair
Part off center. A center part with straight, flat sides repeats the straight lines of the face. Moving the part even a little to one side adds a diagonal across the top and makes the hair fall unevenly at the sides.
Use texture. Waves and curls break up straight edges. Let the fullest part of the wave sit below the jaw, around the collarbones, rather than at cheek or jaw level.
Short hair works. A square face does not need long hair. A crop or pixie with some height on top and soft, slightly longer pieces in front of the ears keeps the corners from being the only thing on show. Whether short hair suits your jaw angle in particular is the question behind the 2.25-inch test.
Slicked back is a choice. Pulling all the hair back shows the full outline, corners included. If you like your jaw, that is a reason to do it, not a mistake.
For glasses, earrings and brows on a square face, see the square face shape guide.