How to convert cubic feet to cubic metres
One cubic foot equals 0.028317 cubic metres, so multiply the number of cubic feet by 0.028317:
m³ = ft³ × 0.028317
ft³ = m³ ÷ 0.028317 (1 m³ = 35.3147 ft³)
Example: 35.3 ft³ → 35.3 × 0.028317 = 0.999585 m³.
Going the other way, divide by 0.028317, or multiply by 35.3147; the cubic metres to cubic feet converter does it for you.
Everyday values
| Cubic feet | Cubic metres | For example |
|---|---|---|
| 35.3 ft³ | 0.999585 m³ | one cubic metre |
| 100 ft³ | 2.8317 m³ | 100 ft³ |
| 1,000 ft³ | 28.3168 m³ | 1,000 ft³ |
When you need this conversion
Divide cubic feet by 35.315 to get cubic metres. Natural-gas use in the US is billed in hundreds of cubic feet (CCF), and 1 CCF is 2.83 m³.
Cubic foot to cubic metre conversion table
| ft³ | m³ | ft³ | m³ |
|---|---|---|---|
| 10 ft³ | 0.283168 m³ | 110 ft³ | 3.1149 m³ |
| 20 ft³ | 0.566337 m³ | 120 ft³ | 3.398 m³ |
| 30 ft³ | 0.849505 m³ | 130 ft³ | 3.6812 m³ |
| 40 ft³ | 1.1327 m³ | 140 ft³ | 3.9644 m³ |
| 50 ft³ | 1.4158 m³ | 150 ft³ | 4.2475 m³ |
| 60 ft³ | 1.699 m³ | 160 ft³ | 4.5307 m³ |
| 70 ft³ | 1.9822 m³ | 170 ft³ | 4.8139 m³ |
| 80 ft³ | 2.2654 m³ | 180 ft³ | 5.097 m³ |
| 90 ft³ | 2.5485 m³ | 190 ft³ | 5.3802 m³ |
| 100 ft³ | 2.8317 m³ | 200 ft³ | 5.6634 m³ |
About the units
- Cubic foot (ft³): exactly 28.316846592 litres.
- Cubic metre (m³): 1,000 litres.
Both are units of volume. The conversion factor comes from the exact definitions above, so the calculator is exact; results are only rounded for display (up to six significant digits).
Frequently asked questions
How many cubic metres are in one cubic foot?
One cubic foot is 0.028317 cubic metres. One cubic metre is 35.3147 cubic feet.
How do I convert cubic feet to cubic metres?
Multiply the value in cubic feet by 0.028317. To go back, divide by 0.028317.
What is 35.3 ft³ in cubic metres?
35.3 ft³ = 0.999585 m³.
What is 100 ft³ in cubic metres?
100 ft³ = 2.8317 m³.
Sources
- NIST Special Publication 811 (2008), Guide for the Use of the International System of Units (SI), Appendix B: conversion factors.
- NIST Handbook 44 (2024), Appendix C: General tables of units of measurement.
Last reviewed 5 October 2026. Results are estimates; see our disclaimer.