Head · Medical · Common
Ear Length
The length from the top of the ear to the bottom.
EarLength
How to measure
Application
Used in hearing aid design, helmet retention system placement, and eyewear temple length sizing.
Posture
Head level, looking straight ahead.
Landmark
Measured from the highest point of the outer ear (helix) to the lowest point of the earlobe.
Tool
Digital caliper or rigid ruler.
Common mistake
Measure to the very bottom of the earlobe. Stopping where the lobe meets the jaw underestimates the result.
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": "EarLength",
"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.