Last updated October 5, 2026 · Report an error
This calculator estimates face shape — oval, round, square, heart, oblong, or diamond — using a simplified, deterministic ratio-based rule set comparing face length to width and the relative widths of the forehead, cheekbones, and jaw, the same basic approach used in common styling guides. This is informational and cosmetic only, not a medical or scientific measurement — it does not diagnose any condition.
How it works
Enter your face length, forehead width, cheekbone width, and jaw width. The tool calculates the ratios between these measurements and applies standard styling-guide rules to estimate the closest face shape category.
- Enter face length (cm).
- Enter forehead width (cm).
- Enter cheekbone width (cm).
- Enter jaw width (cm).
- Click Calculate to see your results.
Examples
A longer face with a narrower jaw
Face length notably greater than cheekbone width, with jaw narrower than cheekbones, typically classifies as Oval.
Who should use it
- Choosing glasses frames or hairstyles suited to face shape.
- General styling and cosmetic reference.
Industry applications
- Eyewear retail
- Hairstyling and personal styling
Advantages
- Quick, simple estimate requiring only a tape measure.
- Based on standard, widely used styling-guide rules.
Limitations
- Not a scientific or medical measurement.
- Real faces can blend multiple shape categories.
Common mistakes to avoid
- Measuring at an angle rather than straight across, which skews the ratios.
- Expecting a single, universally agreed classification — many faces are a blend of shapes.
Best practices
- Take all four measurements with a flexible tape measure directly against the skin, looking straight ahead.
Tips
- Pull hair back and measure with a neutral expression for the most consistent results.