Arm · Workspaces · Common
Work Reach
The maximum reach of the arm while working.
WorkReach
How to measure
Application
Used in workstation and control panel design to ensure critical controls and tools are positioned within comfortable forward reach from a seated position.
Posture
Sit in your normal working position, arm extended forward at shoulder height.
Landmark
Measured from the back of the shoulder to the tip of the middle finger.
Tool
Tape measure.
Assistance
A second person should hold the tape end at the back of the shoulder while the arm is extended.
Common mistake
Leaning forward from the torso inflates the result. The reach should come from the arm alone, with the back remaining upright.
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": "WorkReach",
"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.