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Calculate sitting and standing desk surface heights from measured elbow heights and keyboard thickness, then fine-tune the real workstation.
Updated September 24, 2026 · Planning estimate, not a product guarantee
Replace the example measurements with your own. With shoulders relaxed and forearms roughly level, measure floor to elbow while seated with feet supported, then while standing in your usual shoes and on your usual mat. Measure keyboard thickness from its support surface to the typing keys.
Starting surface heights from your measurements
Replace the example inputs with floor-to-elbow measurements in both positions. The calculator subtracts keyboard thickness from each measurement to estimate the surface supporting the keyboard. For a keyboard tray, the result describes the tray, not the desktop. Start there, type briefly, and fine-tune while keeping shoulders relaxed and wrists straight.
For sitting, include chair height and whether the feet rest flat or on a footrest. For standing, include shoes, an anti-fatigue mat, desktop thickness, and any keyboard tray. Confirm that the desk reaches both positions without operating at an uncomfortable limit.
Keyboard height controls the hands and shoulders; monitor position controls viewing distance and neck posture. Use the display stand or a compatible monitor arm to tune the screen without raising the keyboard surface too high.
No. It is a starting surface height based on your measurements. The default values are examples. Fine-tune with your actual chair, shoes, mat, keyboard, relaxed shoulders, and straight wrists.
Chair height, arm proportions, desktop thickness, keyboard trays, shoes, and floor mats all change the real working surface. Comfort and neutral posture matter more than matching a generic number.