Correct Chair Height for Back Pain Prevention
Most back pain starts with incorrect chair height. Learn how to set your seat height for proper spinal alignment.
When your chair is too high, your feet dangle — this compresses the back of your thighs and forces your pelvis into a posterior tilt. When too low, your knees rise above your hips, rounding your lower back. The ideal chair height puts your feet flat on the floor with knees at 90–110 degrees and thighs parallel to the ground. Use our Chair Height Calculator to dial in your exact setting based on your height and desk height.