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Face Shape Calculator

Health

Discover your face shape — oval, round, square, heart, diamond, or oblong — from your face length, width, jawline, and cheekbone measurements.

Reviewed by the thecalcu.com team · Last updated July 27, 2026

Face Length
cm
1525
Cheekbone Width
cm
1018
Jawline Width
cm
816
Forehead Width
cm
816

Measure face length from hairline to chin, and each width at its widest point (cheekbones, jaw, and forehead) using a flexible tape or ruler.

Your Face Shape

🥚Oval

Balanced proportions with a gently narrowing jaw — considered the most versatile face shape.

Length-to-Width Ratio0.00

For general guidance only. Face shape classification is approximate and based on simple ratios — real faces often blend multiple shapes.

What is a Face Shape?

A face shape calculator classifies your face into one of six standard categories, oval, round, square, heart, diamond, or oblong, based on the relative proportions of face length, cheekbone width, jawline width, and forehead width. Face shape is a widely referenced concept in hairstyling, eyewear selection, and makeup application, since different shapes are often paired with different recommendations meant to balance or complement facial proportions.

This calculator takes four simple tape-measure readings, compares the relationships between them against standard proportional rules, and returns your closest-matching category along with your length-to-width ratio.

How to use this Face Shape calculator

  1. Measure from your hairline to your chin and enter it as Face Length in centimeters.
  2. Measure across your cheekbones at their widest point and enter it as Cheekbone Width.
  3. Measure across your jaw at its widest point and enter it as Jawline Width.
  4. Measure across your forehead at its widest point and enter it as Forehead Width.
  5. Read your Face Shape result, the primary classification the calculator returns.
  6. Review the Length-to-Width Ratio and the step breakdown to see which proportions actually drove the result.

Why Use a Face Shape Calculator?

Styling advice for hair, glasses, and makeup is constantly framed around face shape, but pinning down your own shape from a mirror alone is genuinely hard without a clear reference framework. This calculator removes the guesswork by turning four measurements into a clear, named category.

It's particularly useful ahead of a haircut, an eyewear purchase, or a makeup consultation, giving you a starting point to discuss with a stylist or optician rather than relying on subjective self-assessment alone.

Common Mistakes to Avoid

Measuring at the wrong point. Cheekbone and jawline width need to be taken at each feature's widest point, not at an arbitrary spot, a few centimeters off in either direction can shift you into a different category entirely.

Skipping the forehead measurement. It's tempting to assume length and cheekbone width alone are enough, but forehead width is what separates heart from diamond shapes specifically, leaving it out (or eyeballing it) undermines the whole classification.

Measuring over hair or accessories. Thick hair, hats, or glasses can add a centimeter or more to a width measurement. Measure directly against skin where possible for an accurate reading.

Expecting a perfect single-category match. Plenty of real faces sit between two categories. Treat the result as the closest fit rather than an exact label, especially if your ratio lands right on a threshold boundary.

Quick Reference

Shape Key trait
Oval Balanced, gently tapering
Round Similar length and width, soft jaw
Square Strong jaw close to cheekbone width
Heart Wide forehead, narrow chin
Diamond Cheekbones widest, narrow forehead and jaw
Oblong Noticeably longer than wide

Related tools: the BMI Calculator and Body Shape Calculator apply similar proportional logic to body measurements rather than facial ones, and the Ideal Weight Calculator rounds out the same general-wellness measurement category.

Show formula & methodology ↓Show less ↑

Formula & Methodology

Face shape is classified using proportional comparisons between four measurements:

Length-to-width ratio = Face Length ÷ Cheekbone Width

The calculator applies standard proportional rules: an oblong shape requires a ratio of 1.5 or higher with similar jaw and forehead widths; a round shape has a ratio below 1.25 with a soft jaw close to cheekbone width; a square shape has a ratio below 1.35 with a strong jaw close to cheekbone width; a heart shape has a wide forehead relative to cheekbones with a notably narrower jaw; a diamond shape has cheekbones as the widest point with a narrower forehead and jaw; and oval applies when proportions are balanced without a pronounced match to any of the other categories.

Worked example: for someone with a 19 cm face length, 13 cm cheekbone width, 11 cm jawline width, and 12 cm forehead width:

Length-to-width ratio = 19 ÷ 13 = 1.46

The jaw is moderately narrower than the cheekbones and the ratio sits just under the 1.5 oblong threshold, this proportion pattern classifies as Oval.

Frequently Asked Questions

What is a face shape calculator?
A face shape calculator classifies your face into a category, oval, round, square, heart, diamond, or oblong, based on the relative proportions of face length, cheekbone width, jawline width, and forehead width. It's commonly used in styling and grooming contexts to guide hairstyle, eyewear, and makeup choices.
What are the six main face shape categories?
Oval (balanced, gently tapering), round (similar length and width, soft jaw), square (strong, angular jaw close to cheekbone width), heart (wide forehead, narrow chin), diamond (cheekbones widest, narrow forehead and jaw), and oblong (noticeably longer than wide with fairly even sides). Each reflects a distinct pattern in how the four measurements relate to one another.
How do I measure my face for this calculator?
Measure face length from your hairline to the tip of your chin, cheekbone width at the widest point across your cheekbones, jawline width at the widest point of your jaw, and forehead width across the widest part of your forehead. A flexible tape measure and a mirror are all you need.
What is the length-to-width ratio and why does it matter?
It's your face length divided by your cheekbone width, and it's one of the main indicators used to separate longer face shapes (like oblong) from more balanced or wider shapes (like round or square). A ratio near 1.5 or higher generally points to a longer face shape, while something closer to 1.0–1.3 suggests a more balanced or rounder one.
Can my face shape change over time?
Somewhat, weight changes, aging, and shifts in muscle tone can alter the appearance of the jawline and cheeks, even though the underlying bone structure stays fairly stable through adulthood. A significant weight change is the most common reason someone's classification shifts.
How accurate is face shape classification, really?
It's inherently approximate, since most real faces don't cleanly match a single textbook category, plenty of people land somewhere between two shapes. This calculator applies standard proportional thresholds to make a best-fit call, useful for general styling reference rather than a precise diagnosis.
What hairstyles tend to suit an oval face shape?
Oval is generally considered the most versatile shape, working with a wide range of cuts because the proportions are already balanced. This calculator identifies your category; specific style recommendations are best worked out with a stylist who can factor in your individual features.
Why does forehead width matter for the classification?
Forehead width is what separates heart (wide forehead, narrow jaw) from diamond (narrow forehead, wide cheekbones), two shapes that could otherwise look similar based on jawline alone. Bringing in all four measurements gives a more reliable classification than length and width alone.
Is face shape the same thing as body shape?
No, face shape describes facial bone structure and proportions, while body shape (see the [Body Shape Calculator](/body-shape-calculator/)) describes overall figure proportions using bust, waist, and hip measurements. The two use similar proportional logic but apply to entirely different parts of the body.
Do the six categories apply the same way to everyone?
Yes, the six-category system is a general framework used across beauty and grooming contexts, and it applies to any face shape regardless of gender, though the styling recommendations tied to each shape can differ by personal preference and context.
Also known as
face type calculatoroval round square heart face shapeface measurement calculatorjawline cheekbone calculatorface shape quiz