Cubic Feet to Cubic Meters Converter

Quick answer

Convert cubic feet (ft³) to cubic metres (m³): 1 cubic foot = 0.028316847 m³, so multiply by 0.028316847 or divide by 35.314667. Both fields are editable, so you can also type in cubic metres and get cubic feet back.

ft³
Cubic metres
— m³

One cubic metre is about 35.31 cubic feet. Shipping containers, refrigerators and room volumes are quoted in either depending on the market.

How to use the Cubic Feet to Cubic Meters Converter

  1. Type the number of cubic feet into the Cubic feet field. Decimals such as 50 are fine.
  2. Read the answer in Cubic metres – it updates as you type, with no button to press.
  3. To convert the other way, type into Cubic metres and the cubic feet are recalculated.
  4. Press Copy results to copy both values with the page title, or Copy link to share this exact conversion.

This page converts only ft³ ⇄ m³. Need a different unit? Use the general volume converter, where you can choose any “from” and “to” unit.

How it works

Both units measure volume, so they are always in the same ratio: one cubic foot equals 0.028316847 cubic metres. The calculator multiplies the number of cubic feet you type by 0.028316847 to give cubic metres, and when you type into the cubic metres field it divides by the same factor to give cubic feet. Because the ratio never changes, doubling the cubic feet always doubles the cubic metres. Results are calculated at full precision and rounded only for display (up to eight decimal places, with very large or small values shown in scientific notation).

How to convert cubic feet to cubic metres

  1. Write down the value in cubic feet, for example 100 ft³.
  2. Multiply by the conversion factor 0.028316847 (because 1 cubic foot = 0.028316847 m³).
  3. 100 × 0.028316847 = 2.8316847 m³.
  4. To go back from cubic metres to cubic feet, divide by 0.028316847 – or multiply by 35.314667.

ft³ to m³ conversion table

Cubic feet Cubic metres Cubic metres Cubic feet
1 ft³ 0.028316847 m³ 1 m³ 35.314667 ft³
10 ft³ 0.28316847 m³ 2 m³ 70.629333 ft³
20 ft³ 0.56633693 m³ 5 m³ 176.57333 ft³
35.31 ft³ 0.99986785 m³ 10 m³ 353.14667 ft³
50 ft³ 1.4158423 m³ 20 m³ 706.29333 ft³
100 ft³ 2.8316847 m³ 50 m³ 1,765.7333 ft³
500 ft³ 14.158423 m³ 100 m³ 3,531.4667 ft³
1,000 ft³ 28.316847 m³ 1,000 m³ 35,314.667 ft³
2,000 ft³ 56.633693 m³

What is a cubic foot?

A cubic foot is a cube 1 ft on each side, about 28.32 litres or 7.48 U.S. gallons. Refrigerators, moving trucks, gas meters and lumber are measured in cubic feet in the U.S.

What is a cubic metre?

The cubic metre is the SI unit of volume: 1,000 litres. Concrete, water consumption, natural gas, freight and room air volume are measured in m³.

Quick mental conversion

For a fast estimate, multiply cubic feet by about 0.028 to get cubic metres; the error is about 1.1%. Use the calculator above when you need the exact figure.

Common mistakes to avoid

Mixing u.s. and uk gallons, pints and fluid ounces, assuming a cup is always 250 ml, and treating volume and weight as interchangeable for anything except water.

Formula

1 ft³ = 0.028316847 m³1 m³ = 35.314667 ft³m³ = ft³ × 0.028316847

Worked example

Inputs — Cubic feet: 100 ft³.
Results — Cubic metres = 2.83168466 m³.

Frequently asked questions

How many m³ in 100 ft³?

About 2.83 m³.

How many cubic feet in a cubic metre?

About 35.3147 ft³.

How do I convert cubic feet to cubic metres?

Multiply the number of cubic feet by 0.028316847. For example, 100 ft³ × 0.028316847 = 2.8316847 m³.

How do I convert cubic metres back to cubic feet?

Divide by 0.028316847 (or multiply by 35.314667), or simply type the value into the cubic metres field above.

What is 10 ft³ in cubic metres?

10 ft³ = 0.28316847 m³.

What is 50 ft³ in cubic metres?

50 ft³ = 1.4158423 m³.

Is this conversion exact?

Yes. The factor comes from the official definitions of both units (NIST and the SI), so the only difference you may see is rounding in the last displayed digit.

Can I convert to other units on this page?

This page converts only between cubic feet and cubic metres. To pick any volume unit, use the general volume converter linked under Related calculators.

What formula does the Cubic Feet to Cubic Meters Converter use?

1 ft³ = 0.028316847 m³.

Sources

  1. NIST Special Publication 811 – Guide for the Use of the International System of Units
  2. NIST Handbook 44 Appendix C – General tables of units of measurement

Cite this calculator

Speedy Calculator. (2026). Cubic Feet to Cubic Meters Converter. Speedy Calculator. https://speedycalculator.com/calculators/conversion/cubic-feet-to-cubic-meters/