20 Gallon (UK) to Cubic Foot
Quick answer
20 Gallon (UK) (gal (UK)) equals
3.210873 ft³
To convert 20 Gallon (UK)s to Cubic feet, multiply by 0.1605436532. Therefore, 20 Gallon (UK) (gal (UK)) equals 3.210873 Cubic Foot (ft³).
Formula: ft³ = gal (UK) × 0.1605436532. Calculation: 20 × 0.1605436532 = 3.210873 ft³.
Convert Gallon (UK) (gal (UK)) to Cubic Foot (ft³) online with our free unit converter. In volume, 1 gal (UK) = 0.160544 ft³. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.
Worked example: converting Gallon (UK) to Cubic Foot
- Step 1 — start with the formula. ft³ = gal (UK) × 0.1605436532
- Step 2 — substitute your figure. 20 gal (UK) × 0.1605436532
- Step 3 — read the result. 20 gal (UK) = 3.210873 ft³
- Step 4 — check it in reverse. gal (UK) = ft³ × 6.228835459 returns 20 gal (UK), which matches the figure you started with.
Volume Converter
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20 gal (UK) = 3.210873 ft³
Formula:
ft³ = gal (UK) × 0.1605436532With your value: 20 gal (UK) = 3.21087306 ft³
How big is that?
Everyday references on a logarithmic scale, all expressed in gallon (uk) so you can sanity-check the result.
Other Gallon (UK) to Cubic Foot conversions
Gallon (UK) to Cubic Foot Conversion Table
| Gallon (UK) (gal (UK)) | Cubic Foot (ft³) |
|---|---|
| 0.5 | 0.080272 |
| 1 | 0.160544 |
| 2 | 0.321087 |
| 5 | 0.802718 |
| 10 | 1.605437 |
| 15 | 2.408155 |
| 20 | 3.210873 |
| 25 | 4.013591 |
| 50 | 8.027183 |
| 100 | 16.054365 |
| 250 | 40.135913 |
| 500 | 80.271827 |
| 1000 | 160.543653 |
Cubic Foot to Gallon (UK) Conversion Table
| Cubic Foot (ft³) | Gallon (UK) (gal (UK)) |
|---|---|
| 0.5 | 3.114418 |
| 1 | 6.228835 |
| 2 | 12.457671 |
| 5 | 31.144177 |
| 10 | 62.288355 |
| 15 | 93.432532 |
| 20 | 124.576709 |
| 25 | 155.720886 |
| 50 | 311.441773 |
| 100 | 622.883546 |
| 250 | 1,557.208865 |
| 500 | 3,114.41773 |
| 1000 | 6,228.835459 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Gallon (UK) (gal (UK))
Volume
The imperial gallon is exactly 4.546 09 L (Weights and Measures Act 1985).
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
Cubic Foot (ft³)
Volume
Derived from the cubic metre. The litre is exactly 10⁻³ m³; US and imperial capacity units are exact multiples fixed by statute.
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
How to Convert Gallon (UK) to Cubic Foot
To convert from Gallon (UK) (gal (UK)) to Cubic Foot (ft³), multiply the value by 0.1605436532.
Formula: ft³ = gal (UK) × 0.1605436532
Reverse: gal (UK) = ft³ × 6.228835459
Step-by-Step Example
- Start with your value in Gallon (UK). For example: 5 gal (UK)
- Multiply by the conversion factor: 5 x 0.1605436532
- The result is: 0.802718 ft³
Gallon (UK) and Cubic Foot Relationship
Both Gallon (UK) and Cubic Foot belong to the US Customary / Imperial system, making this an intra-system conversion within volume. Since 1 Gallon (UK) represents a fraction of a Cubic Foot (1 Cubic Foot ≈ 6.2288 Gallon (UK)s), the Cubic Foot is the larger measurement interval. Understanding the relationship between Gallon (UK) and Cubic Foot is essential for accurate calculations in physics, engineering, commerce, and daily applications.
About Gallon (UK)
The imperial gallon equals exactly 4.54609 litres, about 20% larger than the US gallon — a frequent source of fuel-economy confusion.
Common uses of Gallon (UK): UK fuel figures, brewing, older recipes.
About Cubic Foot
The cubic foot equals about 28.3168 litres and is the standard unit for appliance capacity and gas metering in the US.
Common uses of Cubic Foot: refrigerator capacity, natural gas billing, shipping volume.
Frequently Asked Questions
- What is 20 Gallon (UK) in Cubic Foot?
- 20 Gallon (UK) equals 3.210873 Cubic Foot.
- How many Cubic feet are in 1 Gallon (UK)?
- There are exactly 0.1605436532 Cubic feet in 1 Gallon (UK). This means the conversion factor from Gallon (UK) to Cubic Foot is 0.1605436532.
- What is the formula to convert Gallon (UK) to Cubic Foot?
- The formula to convert Gallon (UK) to Cubic Foot is: ft³ = gal (UK) × 0.1605436532. For example, to convert 10 Gallon (UK)s to Cubic feet, you would multiply 10 by 0.1605436532.
- What is a Gallon (UK)?
- The imperial gallon equals exactly 4.54609 litres, about 20% larger than the US gallon — a frequent source of fuel-economy confusion.
- What is a Cubic Foot?
- The cubic foot equals about 28.3168 litres and is the standard unit for appliance capacity and gas metering in the US.
- What are the common uses of Gallon (UK)?
- The Gallon (UK) is commonly used in UK fuel figures, brewing, older recipes.
Related Volume Conversions
Cite this page
UnitConvertLab. (2026). 20 Gallon (UK) to Cubic Foot. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/20-gallon_uk-to-cubic_foot