How this calculator works
The international foot is exactly 0.3048 m. Cubing that length factor gives exactly 0.028316846592 m3 per cubic foot. Cubic conversion uses the cube of the length ratio, which is why dividing by 3.28084 is not the correct volume conversion.
Formula
cubic metres = cubic feet x 0.028316846592; cubic feet = cubic metres / 0.028316846592.
Worked example
A 100 ft3 storage space is exactly 2.8316846592 m3. A 0.5 m3 tank is approximately 17.6573333607 ft3.
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Frequently asked questions
Is a cubic foot a cube with one-foot sides?
Yes. It is also 1,728 cubic inches.
Can I calculate a room volume from length and width?
You also need height. Use the cubic feet calculator for dimensions, then convert its volume here.
Does shape change the factor?
No. The conversion applies to any shape once its volume is known.