Desk Height Calculator

A starting point for ergonomic desk height (adjust to your forearms).

How the Math Works

The Desk Height Calculator uses the formula desk height ≈ 0.43 × body height to determine an ergonomic desk height based on your total height. This coefficient (0.43) is derived from ergonomic research indicating that an optimal seated desk height aligns with approximately 43% of a person's total body height, which corresponds to the natural position of the seated elbow. By multiplying your height in inches or centimeters by this factor, the calculator estimates the ideal desk height to maintain proper posture while working at a seated desk.

Practical Applications

To apply this calculation, first measure your total height accurately while standing straight. Input your height into the calculator, which will multiply it by 0.43 to produce the recommended desk height. For example, if you are 70 inches tall, the calculation would yield 30.1 inches. Adjust your desk to this height, then test it by sitting comfortably with your feet flat on the floor and elbows bent at 90 degrees while typing. Fine-tune slightly if needed to ensure your forearms are parallel to the floor when using the desk.

Day-to-Day Use

Using this ergonomic desk height reduces strain on your back, neck, and wrists during prolonged computer use, helping prevent repetitive strain injuries and improving long-term musculoskeletal health. By aligning your workspace to your body proportions, you’ll experience increased comfort, reduced fatigue, and better posture, which can enhance productivity and focus during work or study sessions. This simple adjustment also supports a more sustainable home office setup, making daily tasks like writing, drawing, or using digital devices more efficient and enjoyable for years to come.

Worked example

175 cm → ~75.3 cm desk.

FAQ