Upload a front-facing photo and see how evenly your face width divides into the classic five vertical facial sections. 100% private in-browser analysis.
For optimal accuracy: look straight ahead, keep a neutral facial expression, remove glasses, and avoid head rotation.
The Rule of Fifths originated in Renaissance anatomical sketches by Leonardo Da Vinci and Albrecht Dürer, later formalized into modern craniofacial anthropometry by Dr. Leslie Farkas.
Under this aesthetic canon, a harmonious human face at the level of the eyes divides horizontally into five equal segments, each segment roughly equal to the palpebral fissure width (the width of one eye).
Natural variations occur across all ethnicities. Modern aesthetic medicine, maxillofacial surgery, and optical frame design use these measurements to determine balance rather than absolute symmetry.
Everything you need to know about facial fifths and facial harmony.
The Rule of Five divides the total bizygomatic face width into five equal vertical segments. The outer segments span from the temporal margin to the outer eye corner, the second and fourth represent eye width, and the middle segment spans the distance between the inner eye corners (intercanthal distance).
Discover your nasal index, eye spacing, golden ratio, and vertical thirds.
Measure nose width relative to nose length with marked alar and bridge-to-tip landmarks.
Measure pupil spacing relative to overall face width with a marked facial-width guide.
Check classic face, nose, mouth, and lower-face proportions in one free marked result.
Compare the measurable middle facial third to the lower facial third with marked guides.
