How to Determine Your Face Shape: 5 Steps, 7 Shapes

Start with a photo, because it takes a minute and shows you the outline you are about to measure. The photo only works if it is honest: face the camera square on, pull every strand of hair back off the forehead and behind the ears, keep the jaw relaxed, and hold the lens at eye level. A phone held low and close widens the jaw and shortens the forehead, which is the single most common reason people get the wrong answer to what is my face shape.

With that photo, open our face shape detector. It sits under the Tools tab of the image workbench and takes one upload. This is the run we recorded on 7 September 2026; the panel layout may have moved since, so the screenshots are dated.

1. 1

   Open the tool

   Use the Detect my face shape button at the end of this page, or choose Face Shape Detector under Tools. The helper line says what it does: analyse facial proportions and classify the face shape.

2. 2

   Load one photo

   Drop the straight-on shot into the Photo box. The Prompt box stays empty for this tool.

3. 3

   Leave 1:1 and 1K

   The result is a report card, so a square canvas at the smallest size is enough.

4. 4

   Read the price, then generate

   On our run the button showed 130 credits struck through and 13 credits charged before anything started.

The card draws four horizontal reference lines across the portrait, names a shape, lists the features it used and shows a strip of reference silhouettes, and it labels itself as a visual estimate rather than a medical measurement. Treat it the same way. Both faces we ran in September came back as oval, and that card's reference strip showed five silhouettes with no oblong, so a long face can be handed the nearest shape on offer. That is why the next section exists: the tape is how you check the picture.

This is how to determine your face shape by hand. A soft tailoring tape and a mirror are enough, and the whole set takes about two minutes. What matters is doing it the same way every time, so write each number down as you go.

1. 1

   Get the right tools

   A soft fabric tape, a mirror at eye level, a hair tie or clips, and a notes app. A rigid ruler works for widths if you have no tape, but not for the curved jaw line.

2. 2

   Measure your forehead

   Lay the tape across the widest part of the forehead, roughly halfway between the eyebrows and the hairline. Keep it level and flat; curving it over the brow ridge adds width you do not have.

3. 3

   Measure your cheekbones

   Go from the outer corner of one eye straight across the top of the cheekbones to the outer corner of the other. People tend to take this one too low, which turns a diamond into a square.

4. 4

   Measure your jawline

   Start at the corner of the jaw below the ear, run the tape to the point of the chin, then double the number. Running under the jaw picks up the neck and inflates the reading.

5. 5

   Measure your face length

   Centre of the hairline straight down to the base of the chin. If the hairline has moved back, measure from where it used to sit and note that you did.

Now turn four numbers into two decisions. First, divide face length by cheekbone width. Close to 1.0 means the face reads as wide as it is long (round or square). Around 1.5 means a balanced length (oval, heart, diamond or triangle). Clearly above that means long (oblong). These thresholds are this guide's working rule of thumb, not a clinical standard, so use them to narrow the field rather than to settle a close call.

Second, find the widest of the three widths. Forehead widest points at heart. Cheekbones clearly widest, with a narrow forehead and jaw, points at diamond. Jaw widest points at triangle. All three within about a centimetre points at square, round or oblong, and the jaw corner decides between them: a corner you can point at is square or oblong, a soft curve is round.

Most charts list six shapes; many add a seventh, triangle (sometimes called pear), for faces whose jaw is the widest line. Use the chart below as a set of tests rather than descriptions, and check your two ratios against each row.

Two pairs cause most confusion. Round and square share the same proportions and differ only at the jaw corner, so look at the corner, not the cheeks. Heart and diamond are both narrow at the chin; the forehead decides it. A forehead as wide as the cheekbones is heart, a forehead noticeably narrower is diamond. Oblong is the shape that charts most often leave out, and it is the one where haircut advice changes most, because adding height to a long face backfires.

Many faces are. If two widths come within a centimetre of each other, or your length ratio sits right on a threshold, you are on a border, and that is a valid result. The common ones are oval and oblong (length ratio near the upper threshold), round and oval (a soft jaw with a slightly long face), and square and oblong (straight jaw, borderline length).

• Re-measure on another day before deciding; small errors at the jaw push borderline faces across the line.
• Take the advice that both shapes agree on. Oval and oblong both suit width at the sides; round and square both suit height on top.
• Where the two shapes disagree, let hair texture and how much time you spend styling break the tie.
• Use a photo with reference lines, from the detector or drawn by hand, to see which border you are closest to.

The method is the same; three things get in the way more often. A beard hides the jaw line, a receding hairline lengthens the measured face, and short hair makes the forehead width obvious while long hair hides it. Square and oblong are the shapes men's grooming guides discuss most, but no reliable count of how common each shape is exists, so do not assume yours from the chart.

• Beard: measure the jaw by pressing the tape against the bone, not over the beard. A full beard can add width at the jaw that is not there.
• Receding hairline: measure length from where the hairline used to sit, and note both numbers. The higher number is why many men are told they are oblong.
• Glasses and caps: take them off for the photo; frames sit on the cheekbone line and change the width the detector reads.
• After you know the shape, a beard becomes a tool: length at the chin lengthens a round face, fullness at the sides widens a long one.

If you want to see the effect of a beard or a buzz cut before you commit, our guide to buzz cut lengths explains the guard numbers, and the hairstyle changer previews a cut on your own photo.

Yes, slowly and for known reasons, which is why the old advice to measure once for life is too strong. The facial skeleton keeps remodelling in adulthood: a review of skeletal ageing found that parts of the facial skeleton resorb in a predictable way, notably the midface around the upper jaw, sections of the eye-socket rim and the area of the lower jaw just in front of the jowl, per Mendelson and Wong in Aesthetic Plastic Surgery (2012). Soft tissue changes faster than bone, so weight gain or loss changes the cheek and jaw readings well before age does.

• Weight change: fat in the cheeks and under the jaw moves the width readings and can shift a face between round and oval.
• Hairline: a receding or transplanted hairline changes the measured length even though the bone has not moved.
• Orthodontics and jaw surgery: these change jaw width and chin position directly.
• Swelling: water retention, dental work or a bad night can move the readings for a day or two.

The practical rule: re-measure after a large weight change, after orthodontic work, or every few years, and keep the old numbers so you can see what moved.

Three practical things, and the reason the measurement is worth two minutes. Haircut volume, because the question is where to add height and where to keep width. Glasses width, because frames read as a horizontal line across the widest third of the face. And camera angle, because turning a few degrees changes apparent jaw width more than any edit.

The rule that beats any table is contrast: a soft jaw takes a hard frame and a hard jaw takes a soft one. Heat styling is the cost of most volume-adding cuts, and the American Academy of Dermatology advises readers to limit blow drying and irons and to use low or medium heat with a protectant. For a full walk-through of cuts by shape, read what hairstyle suits me; if you measured as oval, the oval face shape guide goes deeper.

Run one face through two apps and you can get two answers. Lighting, lens height and a fringe change what any tool sees, and a classifier with fewer outlines than the chart will pick the nearest one it has. General health explainers such as Healthline describe the categories, they do not measure your face, and the medical libraries at Cleveland Clinic treat this as a cosmetic classification rather than a health topic.

• Single overhead light: shadow under the cheekbones narrows the jaw and pushes square toward heart.
• Phone below eye level: shortens the forehead and widens the jaw, pushing oval toward round or square.
• Fringe or hat: hides the top line, so the tool guesses where the forehead ends.

The honest workflow is a hybrid: measure once by hand, keep the numbers, and use the detector when you want the picture and the reference lines to show a stylist. Fashion desks such as Allure, GQ and Self publish seasonal styling advice on top of the same geometry. If you want to try several photos or angles in one sitting, the same tools run from the image workbench, and every tool there runs on GPT Image 2.