Volume
ft³togal (UK)
Convert cubic feet (ft³) to imperial gallons (gal (UK)).
Factor1 ft³ = 6.228835 gal (UK)
Converter
ft³
Accepts numbers or expressions, e.g. 150 + 14.7
Result
gal (UK)
Rendered to 6 significant figures.
Formula
Formula
gal (UK) = ft³ × 6.228835
Multiply any value in cubic feet by 6.228835 to obtain the value in imperial gallons.
Worked example
Convert 10 ft³ to gal (UK).
- 01Start with 10 ft³.
- 02Multiply by the conversion factor: 10 × 6.228835 = 62.2884 gal (UK).
Result10 ft³ = 62.2884 gal (UK)
Conversion table
| ft³ | gal (UK) |
|---|---|
| 1 | 6.2288 |
| 2 | 12.458 |
| 5 | 31.144 |
| 10 | 62.288 |
| 20 | 124.58 |
| 50 | 311.44 |
| 100 | 622.88 |
| 200 | 1245.8 |
| 500 | 3114.4 |
| 1000 | 6228.8 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from ft³ to gal (UK)?
1 ft³ equals 6.228835 gal (UK). To convert, multiply the value in cubic feet by 6.228835.
How do I convert 1 ft³ to gal (UK)?
1 ft³ = 6.22884 gal (UK). For any value, multiply by 6.228835.
How do I convert gal (UK) back to ft³?
Divide by the same factor — or equivalently, multiply by 0.1605437. So 1 gal (UK) = 0.160544 ft³.
When would I need to convert cubic foot to imperial gallon?
Volume conversions are used for tank sizing, batch calculations, and bridging between vendor specs (gallons, barrels, ft³) and process documentation (m³, litres).
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).