Cuboid - Diagonal

The Diagonal of a Cuboid calculator computes the diagonal of a cuboid based on the length, height and width (see diagram).

INSTRUCTIONS: Choose the preferred units and enter the following:

• (L) This is the length of the cuboid. 
• (H) This is the height of the cuboid. 
• (W) This is the width of the cuboid. 

Cuboid Diagonal (d): The diagonal (d) is returned in meters.  However, this can be automatically converted into many other length units via the pull-down menu.

Related Calculators

• Volume of a Cuboid
• Mass of a Cuboid
• Surface Area of a Cuboid
• Diagonal of a Cuboid