Room Volume Calculator
Volume for HVAC, storage, and capacity planning.
Room Volume Calculator
Volume = Length x Width x Height
Calculated instantly
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What This Calculator Does
The Room Volume Calculator computes the interior volume of a space in cubic feet and cubic yards. HVAC sizing, storage capacity, and ventilation planning all start with this measurement.
How It Works
Volume is length times width times height for a rectangular space. Cubic feet divide by 27 to become cubic yards, the unit most often used to order fill material.
Example
A room 12 x 10 x 8 feet holds 960 cubic feet, or about 35.6 cubic yards.
Formula
Volume = Length × Width × HeightCubic yards = cu ft / 27.
Reading the Results
Volume
The interior space in cubic feet, the base figure for HVAC and capacity planning.
Volume in Cubic Yards
The same space in the unit used to order fill and concrete.
Frequently Asked Questions
How do I calculate the volume of a room?
Multiply length by width by height in the same unit. A 12 x 10 x 8 foot room is 960 cubic feet.
Why do I need room volume?
Heating and cooling loads, fan sizing, and storage capacity all depend on volume rather than floor area.
How many cubic feet are in a cubic yard?
There are 27 cubic feet in a cubic yard, so divide the cubic feet by 27 to convert.