How to Convert Cubic metres to Cubic feet (m³ to ft³)
Volume conversions help with baking from American recipes, comparing petrol prices quoted per gallon abroad with pump prices per litre here, and reading PUB water bills in cubic metres. This guide shows how to convert cubic metres into cubic feet by hand, with examples and a quick-reference table.
The conversion
To convert cubic metres to cubic feet, multiply the value by 35.3146667115. To go the other way, divide by the same number (or multiply by 0.0283168466). For a quick estimate, multiply by about 35.
Cubic feet = cubic metres × 35.3146667115
Worked examples
- 3 m³ = 105.944 ft³
- 12.5 m³ = 441.4333 ft³
- 75 m³ = 2,648.6 ft³
Cubic metres to Cubic feet table
| Cubic metres | Cubic feet |
|---|---|
| 1 m³ | 35.3147 ft³ |
| 2 m³ | 70.6293 ft³ |
| 5 m³ | 176.5733 ft³ |
| 10 m³ | 353.1467 ft³ |
| 20 m³ | 706.2933 ft³ |
| 25 m³ | 882.8667 ft³ |
| 50 m³ | 1,765.73 ft³ |
| 100 m³ | 3,531.47 ft³ |
| 250 m³ | 8,828.67 ft³ |
| 500 m³ | 17,657.33 ft³ |
| 1,000 m³ | 35,314.67 ft³ |
Common questions
Is m³ to ft³ exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Divide by the same factor you multiplied by, or reverse the formula above.
Mistakes to avoid
Dropping the units
A bare number without a unit is easy to misread later. Always write the unit with the result.
Multiplying when you should divide
Converting to a smaller unit gives a bigger number, and converting to a larger unit gives a smaller one. If your answer moves the wrong way, you have inverted the factor.
Rounding the factor too early
Using 3 instead of 3.28 for feet per metre introduces an error of almost 9% before you have started.
Background
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
For any value, use the Cubic metres to Cubic feet Converter or browse all volume converters.
Run your own numbers: Cubic metres to Cubic feet Converter