UK Gallons to Cubic Feet (imp gal to ft³) Converter
1 UK gallon (imp gal) = 0.160544 cubic feet (ft³). To convert UK gallons to cubic feet, multiply by 0.160544: 25 imp gal × 0.160544 = 4.01359 ft³.
Quick facts
- 1 imp gal = 0.160544 ft³
- 1 ft³ = 6.22884 imp gal
- Formula: ft³ = imp gal × 0.160544
- Quick estimate: multiply by about 0.16
How to convert UK gallons to cubic feet
- Take the value in UK gallons.
- Multiply it by 0.160544 (the number of cubic feet in one UK gallon).
- Round the result to the precision you need.
Worked example: 25 imp gal × 0.160544 = 4.01359 ft³.
To convert cubic feet back to UK gallons, multiply by 6.22884, or divide by 0.160544.
Source: NIST Handbook 44, Appendix C, and NIST SP 811 (US customary volume units).
UK Gallons to Cubic Feet conversion table
| UK Gallons [imp gal] | Cubic Feet [ft³] |
|---|---|
| 0.01 imp gal | 0.0016054365 ft³ |
| 0.1 imp gal | 0.0160543653 ft³ |
| 1 imp gal | 0.1605436532 ft³ |
| 2 imp gal | 0.3210873065 ft³ |
| 3 imp gal | 0.4816309597 ft³ |
| 5 imp gal | 0.8027182662 ft³ |
| 10 imp gal | 1.6054365324 ft³ |
| 20 imp gal | 3.2108730647 ft³ |
| 50 imp gal | 8.0271826618 ft³ |
| 100 imp gal | 16.0543653236 ft³ |
| 1000 imp gal | 160.5436532359 ft³ |
imp gal to ft³ chart from 1 to 100
- 1 imp gal 0.160544 ft³
- 2 imp gal 0.321087 ft³
- 3 imp gal 0.481631 ft³
- 4 imp gal 0.642175 ft³
- 5 imp gal 0.802718 ft³
- 6 imp gal 0.963262 ft³
- 7 imp gal 1.12381 ft³
- 8 imp gal 1.28435 ft³
- 9 imp gal 1.44489 ft³
- 10 imp gal 1.60544 ft³
- 11 imp gal 1.76598 ft³
- 12 imp gal 1.92652 ft³
- 13 imp gal 2.08707 ft³
- 14 imp gal 2.24761 ft³
- 15 imp gal 2.40815 ft³
- 16 imp gal 2.5687 ft³
- 17 imp gal 2.72924 ft³
- 18 imp gal 2.88979 ft³
- 19 imp gal 3.05033 ft³
- 20 imp gal 3.21087 ft³
- 25 imp gal 4.01359 ft³
- 30 imp gal 4.81631 ft³
- 35 imp gal 5.61903 ft³
- 40 imp gal 6.42175 ft³
- 45 imp gal 7.22446 ft³
- 50 imp gal 8.02718 ft³
- 55 imp gal 8.8299 ft³
- 60 imp gal 9.63262 ft³
- 65 imp gal 10.4353 ft³
- 70 imp gal 11.2381 ft³
- 75 imp gal 12.0408 ft³
- 80 imp gal 12.8435 ft³
- 85 imp gal 13.6462 ft³
- 90 imp gal 14.4489 ft³
- 95 imp gal 15.2516 ft³
- 100 imp gal 16.0544 ft³
Cubic Feet to UK Gallons conversion table
| Cubic Feet [ft³] | UK Gallons [imp gal] |
|---|---|
| 0.01 ft³ | 0.0622883546 imp gal |
| 0.1 ft³ | 0.6228835459 imp gal |
| 1 ft³ | 6.228835459 imp gal |
| 2 ft³ | 12.4576709181 imp gal |
| 3 ft³ | 18.6865063771 imp gal |
| 5 ft³ | 31.1441772952 imp gal |
| 10 ft³ | 62.2883545904 imp gal |
| 20 ft³ | 124.5767091809 imp gal |
| 50 ft³ | 311.4417729521 imp gal |
| 100 ft³ | 622.8835459043 imp gal |
| 1000 ft³ | 6228.8354590428 imp gal |
UK Gallons vs Cubic Feet
| UK Gallon | Cubic Foot | |
|---|---|---|
| Symbol | imp gal | ft³ |
| Equals | 1 imp gal = 0.160544 ft³ | 1 ft³ = 6.22884 imp gal |
What is a UK gallon?
The imperial gallon, defined as exactly 4.54609 litres (UK Weights and Measures Act 1985); about 20% larger than the US gallon. Used in the UK and Canada for fuel economy (miles per gallon), garden and aquarium volumes, and older fuel prices.
What is a cubic foot?
The volume of a cube with 1-foot sides. Used in the US for natural gas usage and shipping volume.
Where You Will Meet UK Gallons and Cubic Feet
UK gallons are used mainly in the UK (pub pints, fuel economy in mpg) and older Canadian recipes, while cubic feet are used mainly in the United States. Canada and the UK use a mix of metric and imperial units while the US uses customary units, so students, engineers, travellers and shoppers in all three countries switch between them often.
How big is 1 imp gal compared with 1 ft³?
1 imp gal is only 0.160544 of 1 ft³: you need 6.22884 UK gallons to make 1 ft³, so the number gets smaller when you convert.
UK Gallons to Cubic Feet without a calculator
- Closer estimate: multiply by 0.16 (within 0.34%).
- Or divide: divide by 6.2 (within 0.46%), which is often easier than multiplying by a small decimal.
Real-world imp gal to ft³ examples
| Example | UK Gallons | Cubic Feet |
|---|---|---|
| One imperial gallon | 1 imp gal | 0.160544 ft³ |
| A small aquarium | 10 imp gal | 1.60544 ft³ |
| A garden water butt | 45 imp gal | 7.22446 ft³ |
| A full-size refrigerator | 124.577 imp gal | 20 ft³ |
| One CCF of natural gas | 622.884 imp gal | 100 ft³ |
How exact is the imp gal to ft³ factor?
The factor is exact by definition, so any error comes only from rounding. Round the final answer, not the factor, and match the precision of the number you started with.
Mistakes to avoid
- This page uses the imperial (UK) measure. A US measure with the same name is smaller, so make sure your source is British or older Canadian.
- Volume factors are the cube of length factors, so a small rounding error in the length becomes three times larger in the volume.
Background on UK gallons and cubic feet
The imperial gallon was introduced in 1824 and is defined as exactly 4.54609 litres.
Related conversions
Related conversions you may need next: us gallons to cubic feet, uk gallons to liters and uk gallons to us gallons. The full volume converter lists every unit.
On pakmath.com, the scientific calculator is a useful next step, as is the percentage calculator; for related everyday maths, try the fuel cost calculator on Adzita.
Frequently asked questions
How many cubic feet are in a UK gallon?
There are 0.160544 cubic feet in 1 UK gallon (1 imp gal = 0.1605436532 ft³).
How many UK gallons are in a cubic foot?
There are 6.22884 UK gallons in 1 cubic foot (1 ft³ = 6.228835459 imp gal).
How do I convert UK gallons to cubic feet?
Multiply the number of UK gallons by 0.160544. For example, 10 imp gal × 0.160544 = 1.60544 ft³. To convert back, multiply by 6.22884.
What is 10 imp gal in cubic feet?
10 imp gal = 1.60544 ft³.
What is 100 imp gal in cubic feet?
100 imp gal = 16.0544 ft³.
Is the imp gal to ft³ conversion exact?
Yes. The factor comes from the official definitions of both units (NIST Handbook 44, Appendix C, and NIST SP 811 (US customary volume units)). Results are shown to up to 10 decimal places; round them to suit your purpose.
What is an easy way to convert UK gallons to cubic feet?
Closer estimate: multiply by 0.16 (within 0.34%).
How many cubic feet is 45 imp gal (a garden water butt)?
45 imp gal = 7.22446 ft³.
How many UK gallons is a full-size refrigerator (20 ft³)?
20 ft³ = 124.577 imp gal.
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