Ergonomic · Automotive · Common
Leg Room
The space available for the legs while seated.
LegRoom
How to measure
Application
Used in vehicle, aircraft, and public transport seating design to ensure adequate clearance for the legs of a seated occupant at knee height.
Posture
Sit in your normal seated position with feet flat on the floor.
Landmark
Measured horizontally from the front of the seat to the nearest obstruction ahead, at knee height.
Tool
Tape measure.
Common mistake
Measuring at foot level gives more apparent space than is available for the knees. Always measure at knee height.
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": "LegRoom",
"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.