Last updated: ·Face Shape Guide
Face Shape Guide

How to Find Your
Face Shape

Find out in 30 seconds — upload a photo to our free AI detector, or use the visual guide below to identify your face shape yourself.

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Your face shape is defined by the relative proportions of your forehead, cheekbones, jawline, and face length. It determines which hairstyles add balance, which glasses frames suit your features, and how to apply makeup for the most flattering result. Once you know your shape, every styling decision becomes simpler.

There are seven recognised face shapes. Most people have one dominant shape, though many share characteristics from two. The guide below covers each shape with key identifiers, a quick visual check, and styling direction.

Full identifiers, proportions, and side-by-side comparisons for all 7 face shapes now live on the complete face shapes guide — this page stays focused on manual measurement and the ratio calculator below.

Jump straight to a shape: Oval · Round · Square · Heart · Diamond · Oblong · Triangle

How to Find Your Face Shape Without AI

If you prefer to identify your face shape manually, here is the reliable four-measurement method used by stylists.

  1. 1

    Pull your hair back

    Expose your full hairline and jaw. Tie hair into a ponytail or use a headband. This is essential — hair volume distorts your face outline significantly.

  2. 2

    Measure your forehead

    Measure the width across your forehead at its widest point — typically just below the hairline, from one side to the other. Write this down.

  3. 3

    Measure your cheekbones

    Find the widest point of your face at cheekbone level — usually just below the outer corner of each eye. Measure from point to point.

  4. 4

    Measure your jawline

    Measure the width of your jaw at its widest point, just above the chin. This is often the trickiest measurement — do it from one jaw corner to the other.

  5. 5

    Measure your face length

    Measure from the centre of your hairline straight down to the tip of your chin.

  6. 6

    Compare the numbers

    Whichever measurement is widest is your dominant feature. Then compare face length to width: if length is clearly greater, your shape is longer (oval or oblong). If they are roughly equal, it is rounder or squarer.

Skip the measuring tape

Manual measurement works but takes time and is prone to error — it is hard to hold a tape measure against your own face accurately. Our free AI detector does this automatically from a single photo. Upload, wait 30 seconds, get your result.

Try the Free Face Shape Detector →

No Tape Measure? Try the Mirror Tracing Method

This method is less precise but gives a clear visual impression of your face shape outline, which is useful when measurements give ambiguous results. Stand about 30 centimetres from a mirror in good, even lighting. Close one eye and use a dry-erase marker or the edge of a bar of soap to trace the outline of your face directly onto the mirror — following your hairline, cheeks, jaw, and chin. Step back and look at the shape you have drawn without your face inside it.

How to Read the Mirror Outline

  • →Oval — the outline tapers gently at both ends with a slight narrowing at the forehead and jaw, widest at the cheeks
  • →Round — a near-circular outline with no visible corners or angles at the jaw or forehead
  • →Square — similar width throughout with visible corners at the jaw; outline looks box-like
  • →Heart — wide at the top, tapering dramatically to a narrow, pointed bottom
  • →Diamond — narrow top and bottom with a dramatic widening in the middle
  • →Oblong — clearly longer than wide with straight sides and no prominent curves
  • →Triangle — narrow at the top, widening visibly toward the bottom

Why Manual Measurement Has Limits

Even with a tape measure, self-measurement introduces errors. It is difficult to hold the tape straight across a curved surface, and your starting and ending points — particularly for cheekbone width and jaw width — require subjective judgment about exactly where to place the tape. Small positioning errors of even a centimetre can change which shape you identify. AI face shape detection removes this subjectivity by analyzing hundreds of facial landmarks simultaneously and comparing proportions using consistent algorithms — particularly useful for faces that fall between two shape categories, which is more common than falling cleanly into one.

When to Use AI Instead of Manual Measurement

  • →Your measurements suggest two possible shapes — AI resolves the ambiguity by analyzing soft tissue and asymmetry
  • →You have significant facial asymmetry — a tape measure averages poorly across an asymmetric face
  • →You want personalized hairstyle and glasses recommendations immediately — AI provides these alongside the shape result
  • →You have tried manual measurement before and gotten inconsistent results across attempts

Calculate Your Two Ratios

Once you have your four measurements, two ratios turn the raw numbers into a shape:

Ratio A — Length-to-width ratio

Face length ÷ cheekbone width. This is the primary diagnostic number.

  • →Below 1.1 → Round (nearly as wide as long)
  • →1.1 – 1.3 → Oval or Square (depends on jaw width)
  • →1.3 – 1.5 → Oval (proportional)
  • →Above 1.5 → Oblong (clearly longer than wide)

Ratio B — Widest zone

Compare forehead, cheekbone, and jaw width — whichever is widest identifies the sub-type:

  • →Forehead widest, jaw narrowest → Heart
  • →Cheekbones widest, forehead and jaw both narrow → Diamond
  • →Jaw widest, forehead narrowest → Triangle
  • →All three roughly equal → Square (short ratio) or Oblong (long ratio)

Most people don't fall cleanly into one shape — they land near the boundary between two. The AI face shape detector is useful precisely here: it classifies by proportional cluster rather than hard ratio cutoffs, and often surfaces a secondary shape alongside the primary one for borderline cases.

Why Does Face Shape Matter for Styling?

Face shape is the foundation of personalised styling. Hairstylists, opticians, and makeup artists all use face shape as their starting reference because the goal of most styling is the same: create the appearance of balanced, oval-like proportions. Different shapes require different approaches to achieve this.

Hairstyles

The right cut works with your natural proportions — adding length where needed, reducing width, or softening angles. The wrong cut works against them.

Best hairstyles by face shape →

Glasses Frames

Frame shape and width relative to your face make a significant difference. Round faces need angular frames; square faces need curved ones.

Glasses guide by face shape →

Makeup & Contouring

Contouring, highlight placement, and blush direction are all determined by face shape. What slims one shape can widen another.

Makeup guide by face shape →

Frequently Asked Questions

What is my face shape?
Your face shape is determined by comparing the width of your forehead, cheekbones, and jawline, and the overall length of your face. The seven main shapes are oval, round, square, heart, diamond, oblong, and triangle. Upload a photo to the free AI detector above for an instant result.
How do I find my face shape from a photo?
Take a front-facing photo with your hair back and good, even lighting. Upload it to our free AI face shape detector. The AI analyses your facial proportions automatically and identifies your dominant face shape in about 30 seconds.
What is the rarest face shape?
Diamond is generally considered the rarest face shape because it requires the specific combination of prominent cheekbones with both a narrow forehead and a narrow jawline. Triangle is also uncommon.
Can my face shape change over time?
Your underlying bone structure — which determines face shape — does not change significantly. However, weight changes and ageing can affect facial fullness and how prominent certain features appear, which may influence how your shape is perceived.
What if I am between two face shapes?
Most people share characteristics from multiple shapes. Identify the dominant shape — the one that most closely matches your proportions — and use that for styling. If you are genuinely in between, follow recommendations for both shapes and choose what feels most accurate.

Find Out Your Face Shape Now

Upload a photo to our free AI face shape detector and get an instant result — plus personalised hairstyle, glasses, and makeup recommendations.

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Naeem Ullah
Naeem Ullah·Founder, Face Shape Detector • AI & Facial Proportion Researcher
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