Face Form Finder
Oval vs Oblong Face Shape: Why Your Two Answers Disagree
Oval and oblong are one measurement read against two different rulers. Both are faces longer than they are wide, and both of the popular ratio rules online agree on that much. They part company on the denominator: one divides face length by the average of your forehead, cheekbone and jaw widths, the other divides by cheekbone width alone. Unless those three widths are identical, the same face scores differently on each. Clinical work sidesteps the argument by fixing both landmarks — height from the bridge of the nose to the bottom of the chin, width across the two widest points of the cheekbones — and reading the result out of 100. Under 80 is broad. 85 to 90 is the middle. 95 and up is long.
The two ratio rules you found are not the same scale
Put the popular rules side by side and they look like a straight contradiction. One places oval at 1.25 to 1.45 and oblong at 1.5 or higher. The other places oval near 1.5 and oblong at 1.75 or higher.
Read as one scale, they cannot both be right. A 1.5 is oblong on one page and oval on the other.
They are not one scale. The first divides your face length by the average of three widths — forehead, cheekbone, jaw. The second divides by cheekbone width on its own. If your cheekbones are the widest of the three, that average is a smaller number than your cheekbone width, so dividing by it produces a larger ratio.
A second difference sits on top of the first. One rule measures length from the hairline. The other starts lower down the face. Hairline to chin includes the whole forehead, which pushes the number up again.
Two denominators, two starting points. Four possible answers for one face. That is why the label changes when you change websites, and why measuring harder does not help until you fix what you are dividing by.
The ruler that comes with numbered bands
The measurement used in clinical work is the facial index. One formula, one height, one width, and a set of bands with numbers attached.
Height runs from the bridge of the nose to the lowest point of the chin. Width is the straight span between the two widest points of the cheekbones. Divide height by width and multiply by 100.
Both landmarks sit on bone. Neither depends on where your hairline happens to fall or where the soft edge of your jaw is judged to end, and that is what makes the number repeatable in a way a hairline-based measurement is not.
The five bands
| Facial index | Band | In plain terms |
|---|---|---|
| Under 80 | Hypereuryprosopic | Very broad |
| 80.0 to 84.9 | Euryprosopic | Broad |
| 85.0 to 89.9 | Mesoprosopic | The middle of the range |
| 90.0 to 94.9 | Leptoprosopic | Long |
| 95.0 and above | Hyperleptoprosopic | Very long |
Mapped onto the words you already use, the broad bands read as round or square, the middle band reads as oval, and the long bands read as oblong. Treat that as a direction rather than a translation. The index measures length against width and nothing else. It cannot see where your widest point sits, and that is the other half of the oval-versus-oblong question.
Keep your head level, or the number moves
Tilt your chin down and your measured height shrinks. Tilt it up and it grows. The tilt is a few degrees. The effect on the index is not.
Clinical protocols fix the head position before anything is measured, using a reference plane held level with the ground. Dental scan work does the same, aligning each subject to that plane before the landmarks are picked.
At home, this is the one piece of setup worth getting right. Sit square to the mirror, look straight ahead, and do not measure from a photo taken with your chin lifted. A phone held slightly below eye level lengthens the lower face in the frame, which raises the height reading and can move a face up a band on its own.
A number only means something against the right range
Bands describe a spread, not a target. In a scan of 100 adults in their twenties, 75 measured below 80, 20 between 80 and 85, 5 between 85 and 90, and none above 90.
In that group the long band is not rare. It is empty. A face measuring 92 would sit outside the whole sample rather than at the top of it.
So read your own number against a range that belongs to people like you, and hold the band loosely. It sorts faces. It does not rank them.
How to take the reading yourself
You do not need calipers. You need to stop changing the method between attempts.
- Fix the height. Bridge of the nose to the lowest point of the chin. Not the hairline.
- Fix the width. The two widest points of the cheekbones, straight across. If the tape has slipped onto the widest part of your skull instead, the reading comes out too high — a common slip, and a large one.
- Measure twice and average. Clinical work does exactly this. One protocol took every reading twice to control error; another had two examiners each measure twice and averaged all four. Measuring once and trusting it is the biggest single source of a wrong label.
- Divide and multiply. Height divided by width, then times 100. Round to one decimal.
- Keep one unit. Both numbers in the same unit. The unit cancels out, so centimetres and millimetres give you the same index.
If your number lands between two bands
The bands have hard edges. Faces do not. An 89.9 and a 90.1 are the same face, and no decision should turn on the difference.
Near a boundary the index has stopped being informative, and two things carry more weight. Where is your widest point? Cheekbones clearly the widest reads oval whatever the number says. Forehead, cheeks and jaw all within a few millimetres of each other reads oblong. And do your sides run straight, or curve inward at the cheek? Straight sides belong to the oblong reading.
Remember what the number cannot see. It measures length against width and stops. It knows nothing about your hairline, your jaw angle, or how your face reads at three-quarter view — which is the angle most people actually see you from.
What this settles
The oval-versus-oblong argument is not a disagreement about faces. It is a disagreement about where to put the tape.
Fix the landmarks, take the reading twice, and the label stops changing. Then use it for what it is good for: choosing a haircut that does not add height you do not need, or a frame that sits the right width across your face.
For the four readings most face-shape guides ask you to take, and why one head can read two ways, see What Is My Face Shape?.