Midface Ratio Calculator


About Midface Ratio Calculator (Formula)

The Midface Ratio Calculator is a specialized tool used in the field of facial analysis and aesthetics. It plays a crucial role in assessing facial proportions and symmetry, helping individuals, plastic surgeons, and other healthcare professionals evaluate facial harmony. Understanding the midface ratio is particularly important in cosmetic procedures, such as rhinoplasty, where subtle changes can have a significant impact on a person’s overall facial appearance.

Formula for Midface Ratio:

The midface ratio is calculated using the formula:

Midface Ratio = (Width of Midface / Width of Face) x 100


  • Width of Midface: This measurement typically involves the distance between the outer corners of the eyes (canthal width) or the distance between the midpoints of the pupils.
  • Width of Face: This measurement typically involves the distance between the outer corners of the face, usually from ear to ear.

The resulting midface ratio is expressed as a percentage.


The midface ratio serves as an indicator of facial balance and symmetry:

  • A midface ratio close to 50% suggests a balanced and harmonious facial proportion.
  • A midface ratio significantly higher or lower than 50% may indicate facial disharmony or disproportionate facial features.

Clinical Application:

  1. Facial Analysis: The midface ratio is used in facial analysis to assess the balance between different facial features, such as the eyes, nose, and mouth. It helps identify areas where improvements or adjustments may be desired.
  2. Rhinoplasty Planning: Plastic surgeons often use the midface ratio as a reference point when planning rhinoplasty procedures. Alterations to the nose can impact the midface ratio, and surgeons aim to achieve a result that enhances overall facial harmony.
  3. Treatment Planning: Cosmetic procedures like dermal fillers, Botox injections, and orthodontic treatments may consider the midface ratio when planning treatments to achieve desired facial aesthetics.
  4. Research and Evaluation: The midface ratio is also used in research studies and aesthetic evaluations to assess the impact of various treatments or interventions on facial appearance.


It’s important to note that while the midface ratio provides valuable insights into facial proportions, it is just one aspect of facial analysis. Comprehensive evaluation should consider other factors such as the Golden Ratio, facial symmetry, and individual preferences.

In conclusion, the Midface Ratio Calculator is a valuable tool for assessing facial proportions and harmony. It aids in cosmetic procedures, treatment planning, and aesthetic evaluations, helping individuals and healthcare professionals achieve balanced and pleasing facial aesthetics. However, it should be used in conjunction with other facial analysis methods for a comprehensive assessment of facial beauty and harmony.