Enter the inches and the conversion factor into the calculator to determine the rack units.

Inches To Rack Units Formula

The following formula is used to calculate the conversion from inches to rack units.

RU = I / 1.75


  • RU is the rack units
  • I is the inches to be converted

To calculate the rack units, divide the inches by 1.75. This will give you the equivalent measurement in rack units.

What is Inches To Rack Units?

Inches to Rack Units is a conversion method used in telecommunications and computing industries to measure the height or space occupied by electronic equipment in a rack. A rack unit, often represented as “U” or “RU”, is a standardized measurement equal to 1.75 inches. This system allows for efficient and organized placement of equipment within a rack, ensuring compatibility and interchangeability between different manufacturers and types of equipment.