Desk height calculator

Find a desktop height that places your keyboard at your measured elbow height.

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Relaxed elbow height above floor (cm)

Keyboard key surface above desktop (cm)

More inputs and assumptions

Current desktop height (cm)

Answer

…

Find a desktop height that places your keyboard at your measured elbow height.

More results

Precision and calculation record

Decimal places in numeric results and text downloads

Rounding changes displayed numbers, not the calculation. Text, fractions, matrices and CSV schedules keep their own formatting. Automatic keeps up to 12 significant digits, with money shown to cents where applicable.

Saved scenario

Save the current answer, then change an input to compare. This clears when you leave.

Formula and assumptions

Measure while seated or standing in your intended working posture, with relaxed shoulders and supported feet. Desktop height equals measured elbow height minus keyboard key height above the desktop. This measures your setup rather than estimating body proportions from stature. Check wrist position, leg clearance and comfort after adjustment.

Automatic precision shows numbers to 12 significant digits. Thousands separators such as 1,000 are accepted; use a dot for decimals.

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Keyboard shortcuts

Updated 2026-09-29

Using Desk height calculator

Find a desktop height that places your keyboard at your measured elbow height.

Next: Calculate BMI

Next: Length converter

A worked example

For relaxed elbow height above floor (cm) = 72, keyboard key surface above desktop (cm) = 3, current desktop height (cm) = 75, calculated desktop height (cm) = 69.

Before you use the result

Example results for relaxed elbow height above floor (cm)

These examples use Keyboard key surface above desktop (cm): 3; Current desktop height (cm): 75. They are reference calculations, not recommended settings.

Relaxed elbow height above floor (cm)	Calculated desktop height (cm)
36	33
72	69
144	141

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