Face Form Finder

Round Face Shape: The Four Numbers, and Which One Decides It

Four readings separate a round face from a square one, from an oval one, and from a face that only looks round because of where the tape started. They are in the table below, before anything else.

A dash means the method behind that row publishes no separate cut-off for that shape. It is not a missing value filled in with a guess. One row covers all seven shapes, one covers three, and one covers a single shape. That spread tells you where the measurement literature is thin, which is a different thing from where faces are rare.

How each reading is taken

Face length ÷ cheekbone width. Face length runs from the centre of the hairline to the tip of the chin. Cheekbone width is the straight line between the outermost points of the cheekbones, taken at the widest part of the face and not at the lower cheek. Divide the first by the second. Below 1.15 the face is about as wide as it is long, and that is the reading round is built on. The same ratio reaches 1.40 to 1.60 on an oval face and passes 1.60 on a long one, so the number is doing most of the separating on this page.

Forehead width ÷ jaw width. Measure straight across the forehead at its widest, then across both jaw angles. Near 1.0 the two ends of the face are close to the same width. Square sits inside 0.90 to 1.10 by definition, because equal upper and lower widths are part of what the label means. A heart-shaped face runs above 1.25, so the forehead carries more than a quarter more width than the jaw. A triangle-shaped face runs below 0.82, with the jaw as the wide end.

Cheekbone width ÷ the mean of forehead and jaw width. This reading asks how far the cheekbones stand out from the other two widths rather than how wide they are on their own. Take the forehead and jaw figures, average them, and divide the cheekbone width by that average. Only one shape has a published cut-off: diamond, above 1.20. For every other shape you have to read which of the three widths leads, and the four numbers alone will not always settle it.

Gonial angle, side view. Look at the jaw in profile. The angle where the jawbone turns upward toward the ear is the gonial angle. On a jaw with no visible corner it sits near 120 degrees. On a square face it closes toward 90, and the corner becomes visible from the front as well as the side. On a round face the corner stays soft and the angle stays near 120 even when the jaw is wide. Wide jaw plus open angle is the combination the width readings cannot resolve, and it is the single most common reason a round face gets called square.

The two rows that describe everyone

The last two rows carry the same figure in all seven columns, and that is deliberate. They describe the adult population rather than a shape. Adult face width across the cheekbones averages 14.3 cm in men and 13.4 cm in women, with the general adult range running from about 12 to 15 cm. Face length from the hairline to the chin works out at roughly 19.2 cm in men and 17.6 cm in women, because face width divided by full face length sits near 0.74 in men and 0.76 in women. Divide 14.3 by 0.744 and you get 19.2. Divide 13.4 by 0.759 and you get 17.6.

Those two rows answer a different question from the four above them. They tell you whether your face is large or small in absolute terms. The four readings above tell you how your widths sit against each other. A 12 cm face width is unremarkable on its own. What makes a face read round is that the length is only about 1.1 times the width, not that either figure is unusual.

Keep the two kinds of row apart when you compare yourself to a photograph of someone else. Two people can share a shape label and differ by a centimetre of face width, which is why a haircut that works on one of them does nothing on the other.

Where round stops and oval starts

The gap between two of the bands is the widest on the table. Round stops at 1.15. Square runs to 1.30. Oval does not begin until 1.40. Nothing published covers 1.30 to 1.40 on this reading, so a face measuring 1.35 is not mildly oval and not mildly square. It sits outside every band on the row.

That is the case where the other three readings earn their place. If the cheekbones lead and both the forehead and the jaw taper inward, the profile is reading oval and the length is just on the short side of the published band. If the three widths land within a few per cent of each other and the jaw corner is soft, the same length reads round. Same ratio, two labels, and the width pattern is what separates them.

The reverse case is just as common. A face with a length-to-width ratio of 1.10 and a sharp jaw corner gets called round by the ratio and square by anyone looking at it. The angle is the reading to believe there, because every frame and every haircut sits against the corner rather than against the width.

Measuring the two widths that move

Two of the four readings are stable enough to take at home. Two are not, and it is worth knowing which is which before you write a number down.

The cheekbone width is the stable one. Find the widest point of the face by sliding a finger along the cheekbone until the outline stops widening, and mark both sides at the same height. Take it twice. A reading that changes by more than half a centimetre between attempts means one of the two marks sat on the lower cheek instead of the cheekbone, which shortens the width and pushes the ratio up toward oval.

The face length is the one that moves. It starts at the hairline, and the hairline is the only landmark on this page that no instrument locates for you. A fringe resting on the forehead moves the start point down and hands you a length that reads short, which pushes a face toward round. Sweep the hair back before you measure, and if the hairline is receding, treat the reading as a range rather than a figure.

Head position does the rest. Tilting the chin down by a few degrees is enough to shift a length-to-width ratio by about 0.05, which is the difference between the top of the round band and the bottom of the square one. Photograph yourself straight on, at eye level, with the camera at least a metre away. A phone held close at chest height curves the outline and flattens the length at the same time.

What the numbers cannot do

None of the four readings measures where the cheek is fullest, and that is the feature people actually notice. Two faces can share a ratio of 1.05 and look nothing alike, because one carries its width at the cheekbone and the other carries it lower, over the jaw.

They also cannot separate a round face from a young one. The soft jaw corner and the full cheek that produce the round reading are the same features that thin out with age, so the same face can leave the band without changing shape at all. Treat a reading inside a band as provisional and re-take it in a year before you build a wardrobe on it.

And no reading tells you whether to soften the outline or keep it. That is a choice about what you want the face to look like, and there is no number on this page that answers it.

For the four readings most guides ask you to take, and why one head can read two shapes, see What Is My Face Shape?. For the same table read the other way round, shape by shape, see Face Shape Chart. If the ratio came out above 1.30, the two long labels are separated in Oval vs Oblong, and the width readings are worked through at length in Square Face Shape.