Arm · Workspaces · Common
Knuckle Height
The height from the floor to the knuckles.
KnuckleHeight
How to measure
Application
Used in the design of standing workbenches, assembly lines, and tool storage to position surfaces at the natural hand height for standing tasks.
Posture
Stand upright, arm hanging relaxed at the side, hand loosely open.
Landmark
Measured from the floor to the middle knuckle of the hand.
Tool
Tape measure fixed vertically to a wall.
Common mistake
Clenching the fist raises the knuckles. Keep the hand open and relaxed.
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": "KnuckleHeight",
"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.