Calculate Your Chair Settings

Enter your height to calculate seat, armrest, and lumbar settings.

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How to Use This Calculator

  1. 1
    Enter your height
    Input your height in feet and inches for accurate calculations
  2. 2
    Click Calculate
    Get personalized seat height, armrest, and lumbar settings
  3. 3
    Adjust your chair
    Use the results to set your chair to the recommended positions
  4. 4
    Fine-tune for comfort
    Make small adjustments based on your desk height and personal preference

Why Chair Height Matters for Ergonomics

An improperly adjusted chair is the leading cause of back pain among office workers. Studies show that 80% of adults experience back pain, with poor seating being a major contributor.

Signs Your Chair Height is Wrong

  • Feet dangling or not flat on the floor
  • Knees higher or lower than hips
  • Pressure on thighs from seat edge
  • Reaching up or down to type

Benefits of Proper Chair Height

  • Reduced lower back strain and pain
  • Better blood circulation in legs
  • Improved posture throughout the day
  • Less fatigue during long work sessions
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Chair Height by Person Height

Quick reference for seat height settings

Your Height Seat Height Armrest Height
5'0" (152 cm) 15-16" 7-8" above seat
5'4" (163 cm) 16-17" 8-9" above seat
5'8" (173 cm) 17-18" 9-10" above seat
6'0" (183 cm) 18-19" 10-11" above seat
6'4" (193 cm) 19-21" 11-12" above seat

* Measurements assume standard desk height of 28-30 inches.

Frequently Asked Questions

For a standard 28-30 inch desk, your chair height should allow your elbows to be at a 90-degree angle when typing. This typically means a seat height of 16-21 inches depending on your height.
Yes, your feet should be flat on the floor with your knees at approximately 90 degrees. If your chair is too high, use a footrest. If too low, raise the seat until your thighs are parallel to the floor.
Armrests should support your forearms at a height where your shoulders remain relaxed (not shrugged up). Typically 7-12 inches above the seat surface, depending on your proportions.
Lumbar support should fit into the natural curve of your lower back, typically 6-10 inches above the seat. It should feel supportive without pushing you forward.
Too high: feet dangle, pressure under thighs. Too low: knees higher than hips, hunching forward to reach desk. Ideal: feet flat, thighs parallel to floor, elbows at 90 degrees.