Cubic Feet to Cubic Meters
Convert cubic feet (ft³) to cubic meters (m³). Both measure capacity and volume, and the conversion comes up in cooking, chemistry, fuel work.
The Formula
``
cubic meters = cubic feet × 0.028316846592
cubic feet = cubic meters × 35.3146667215
`
One cubic feet is 0.028317 cubic meters, and one cubic meter is 35.3147 cubic feet.
Conversion Table
| Cubic Feet | Cubic Meters |
|---|---|
| 1 ft³ | 0.028317 m³ |
| 2 ft³ | 0.056634 m³ |
| 5 ft³ | 0.141584 m³ |
| 10 ft³ | 0.283168 m³ |
| 25 ft³ | 0.707921 m³ |
| 50 ft³ | 1.4158 m³ |
| 100 ft³ | 2.8317 m³ |
| 500 ft³ | 14.1584 m³ |
| 1,000 ft³ | 28.3168 m³ |
The Other Direction
| Cubic Meters | Cubic Feet |
|---|---|
| 1 m³ | 35.3147 ft³ |
| 2 m³ | 70.6293 ft³ |
| 5 m³ | 176.5733 ft³ |
| 10 m³ | 353.1467 ft³ |
| 25 m³ | 882.8667 ft³ |
| 50 m³ | 1,765.73 ft³ |
| 100 m³ | 3,531.47 ft³ |
| 500 m³ | 17,657.33 ft³ |
| 1,000 m³ | 35,314.67 ft³ |
What Each Unit Is
Cubic Feet (ft³) — the volume of a cube one foot on each side, or 28.3168 litres. The imperial volume unit for freight, appliances and ventilation.
Cubic Meters (m³) — the volume of a cube one metre on each side, equal to 1,000 litres. The SI derived unit of volume.
A Sense of Scale
A domestic fridge is 18–25 ft³- Airflow is rated in cubic feet per minute
- A cubic metre of water weighs 1 tonne
- Domestic gas and water are billed per m³
Precision
The factor 0.028316846592 is rounded. For engineering work carry more digits than the table above, and round only at the end — rounding at each step compounds.
In Code
`javascript
const cubicFootToCubicMeter = (value) => value * 0.028316846592;
``
Where This Conversion Comes Up
- Cooking
- Chemistry
- Fuel
- Beverages
- Medicine
How Many Decimals Do You Need?
Rounding the factor costs accuracy, and how much depends on the factor. Converting 137 ft³ with the factor truncated at each decimal place:
| Decimals kept | Factor | 137 ft³ becomes | Error |
|---|---|---|---|
| 0 | 0 | 0 | 100.0000% |
| 1 | 0 | 0 | 100.0000% |
| 2 | 0.03 | 4.11 | 5.9440% |
| 3 | 0.028 | 3.836 | 1.1189% |
| 4 | 0.0283 | 3.8771 | 0.0595% |
The right number of significant figures is set by your input, not by the converter. If you measured cubic feet to three significant figures, the answer in cubic meters is only good to three — writing more digits claims precision the measurement never had.