What does this calculator do?
The Standing Desk Height Calculator estimates comfortable seated and standing desk surface heights, along with a chair seat height and monitor position, based on standard workplace ergonomics guidelines that scale these measurements to your body height.
The method
Ergonomic recommendations generally set the ideal desk height so your forearms are roughly parallel to the floor with elbows at about a 90-degree angle. This calculator approximates seated elbow height at about 44% of body height and standing elbow height at about 65% of body height, then subtracts a small offset for keyboard and desk surface thickness. Monitor top height is estimated near eye level, around 62% of body height, and chair seat height near 25% of body height.
These are general starting points based on average body proportions, not a substitute for testing your own setup; actual comfort also depends on torso-to-leg ratio, chair type, and keyboard tray use, so adjust height gradually and stop if you feel strain.