Face Shape Detector Calculator
Use the Face Shape Detector to identify your natural face shape — oval, round, square, heart, or diamond — by entering a few simple facial measurements. Knowing your face shape is key to choosing the most flattering hairstyles, glasses, and beard styles.
Identify Your Face Shape by Key Measurements
Face Shape Detection Based on Ratios
\[
\text{Face length to width ratio:}\\
\text{Ratio}_1 = \frac{L}{C}\\[1em]
\text{Jawline and cheekbone comparison:}\\
\text{Ratio}_2 = \frac{J}{C}
\]
There is no single formula — the shape is determined by comparing proportions. The calculator typically uses:
- Forehead width (F)
- Cheekbone width (C)
- Jawline width (J)
- Face length (L)
Interpretation logic (simplified rules):
- Oval: Ratio₁ > 1.5, jaw slightly narrower than forehead
- Round: Ratio₁ ≈ 1, soft jawline
- Square: Ratio₁ ≈ 1, angular jawline
- Heart: Wide forehead, narrow jawline
- Diamond: Narrow forehead and jawline, wide cheekbones
Face Shape – Calculation Example
Example:
- Face length = 18 cm
- Cheekbone width = 13 cm
- Jawline = 11 cm
- $$\text{Ratio}_1 = \frac{18}{13} ≈ 1.38$$
- $$\text{Ratio}_2 = \frac{11}{13} ≈ 0.85$$
Interpretation: Length > width, jaw < cheekbones ⇒ Oval face
Face shape affects how accessories, makeup, and hairstyles look on you. Common uses of knowing your face shape include:
- Picking the most flattering haircut
- Choosing the right beard style
- Selecting sunglasses and glasses frames
- Personal styling and beauty
Face shapes:
- Oval – Balanced, versatile
- Round – Soft edges, youthful
- Square – Strong jawline, angular
- Heart – Wide forehead, narrow chin
- Diamond – Angular cheekbones, narrow forehead and chin
This tool gives you a quick result using only a measuring tape and a mirror.