Head · Medical · Common
Lip Length
The length of the lips.
LipLength
How to measure
Application
Used in respirator and oxygen mask sizing, medical facial assessment, and cosmetic procedure planning.
Posture
Head level, lips relaxed and gently closed, expression neutral.
Landmark
Measured from the right corner of the mouth to the left corner.
Tool
Digital caliper or rigid ruler.
Common mistake
Smiling or pursing the lips changes the result significantly. Keep the expression fully neutral throughout.
API example
Request a predicted value for a 34-year-old woman at the 50th percentile in the United States. Adjust age, percentile, gender, and country to match your design scenario.
POST https://api.humanform.app/v1/predict
Authorization: Bearer hf_live_...
Content-Type: application/json
{
"measurement": "LipLength",
"gender": "Female",
"age": 34,
"percentile": 50,
"country": "US",
"unit": "cm"
}Response values depend on age, percentile, gender, and country. Create a free dashboard account to run live predictions.
See design examples for worked scenarios that combine multiple measurements, or read the methodology page for percentile-based design thinking.
Explore the dataset
Humanform covers 148 measurements with country-adjusted predictions and separate female and male profiles. Browse the full inventory or read the API reference for request syntax.