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Cubic feet to cubic meters (cu ft to m3)

To convert cubic feet to cubic meters (cu ft to m3): one cubic foot is 0.028316847 cubic meters, so 100 cu ft is 2.83168 m3.

Swap units: m3 to cu ft

In cubic meters2.83168 m3

Conversion factor Exact by definition. The inch has been exactly 2.54 cm and the pound exactly 0.45359237 kg since the 1959 international yard and pound agreement, so these are not measurements that can drift.
1 cubic foot = 0.0283168466 cubic meters
The other way
1 cubic meter = 35.31466672 cubic feet
Working
100 x 0.0283168466 = 2.83168
100 cu ft in every unit
2,831,685 ml 2,831.7 L 574,504 tsp 191,501 tbsp 95,751 fl oz 11,969 cup 5,984.4 pt 2,992.2 qt 748.05 gal 622.88 imp gal 100 cu ft 3.7037 cu yd 2.8317 m3
cubic feet to cubic meters
cu ftm3
10.0283168
20.0566337
50.141584
100.283168
250.707921
501.41584
1002.83168

How the Unit Converter works

One cubic foot is exactly 0.0283168466 cubic meters. That is a definition rather than a measurement: the imperial and US customary units were fixed against metric ones by the 1959 international yard and pound agreement, so this factor does not drift and will not be revised.

Worked through: 50 cu ft x 0.0283168466 = 1.41584 m3.

Going the other way, one cubic meter is 35.31466672 cubic feet.

For mental arithmetic: Divide by 35.3, or multiply by 0.0283.

One cubic foot is exactly 0.028316846592 cubic meters, which is 0.3048 cubed: the foot's definition, taken to the third power. The number looks arbitrary, but every digit is inherited from the exact 0.3048 meters that defines the foot. Shipping is where this bites. Freight volume is quoted in cubic feet in the US and cubic meters almost everywhere else, and a 20-foot container is about 33 cubic meters or 1,170 cubic feet.

Precision is worth matching to the input. A measurement given as 1 cu ft carries one or two significant figures, and reporting its conversion to six implies a precision the original never had.

Unit Converter FAQ

How many cubic meters are in a cubic foot?

0.028316847. That is exact by definition: the 1959 international yard and pound agreement fixed it, and it does not change.

What is 100 cu ft in cubic meters?

2.83168 m3. Multiply by 0.028316847: 50 cu ft x 0.0283168466 = 1.41584 m3.

How do I convert cubic meters back to cubic feet?

Divide by 0.028316847, or equivalently multiply by 35.314667. One cubic meter is 35.314667 cubic feet. The two factors are reciprocals, so you only need to remember one of them.

Is there a quick way to do this in my head?

Divide by 35.3, or multiply by 0.0283. It is close enough for everyday use.

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