Cubic Feet to Imperial Gallons Converter
Convert cubic feet to Imperial gallons instantly with this free cubic feet to Imperial gallons converter. Enter any value to get an accurate volume conversion, plus the formula, the conversion factor and a full reference table.
What is 1 cubic foot in Imperial gallons?
1 cubic foot is equal to 6.22883546 Imperial gallons.
1 × 6.22883546 = 6.22883546 Imperial gallons
1 cubic foot = 6.228835459 Imperial gallons
Cubic feet to Imperial gallons formula
imp gal = ft³ × 6.22883546
The cubic feet to Imperial gallons conversion factor is 6.22883545904, which is exact by definition. 1 cubic foot = 6.22883545904 Imperial gallons, and 1 Imperial gallon = 0.160543653236 cubic feet.
Regional note. Gallons differ by region. A US liquid gallon is exactly 3.785411784 liters; an Imperial (UK) gallon is exactly 4.54609 liters — about 20% larger. This page uses the Imperial gallon.
Worked examples
- 2 cubic feet = 12.4576709 Imperial gallons — 2 × 6.22883546 = 12.4576709 Imperial gallons
- 6 cubic feet = 37.3730128 Imperial gallons — 6 × 6.22883546 = 37.3730128 Imperial gallons
- 10 cubic feet = 62.2883546 Imperial gallons — 10 × 6.22883546 = 62.2883546 Imperial gallons
Cubic feet to Imperial gallons conversion table
Every value below is calculated with the exact conversion factor and rounded for display.
| Cubic feet (ft³) | Imperial gallons (imp gal) |
|---|---|
| 1 ft³ | 6.2288355 imp gal |
| 2 ft³ | 12.457671 imp gal |
| 3 ft³ | 18.686506 imp gal |
| 4 ft³ | 24.915342 imp gal |
| 5 ft³ | 31.144177 imp gal |
| 6 ft³ | 37.373013 imp gal |
| 7 ft³ | 43.601848 imp gal |
| 8 ft³ | 49.830684 imp gal |
| 9 ft³ | 56.059519 imp gal |
| 10 ft³ | 62.288355 imp gal |
| 12 ft³ | 74.746026 imp gal |
| 15 ft³ | 93.432532 imp gal |
| 20 ft³ | 124.57671 imp gal |
| 25 ft³ | 155.72089 imp gal |
| 30 ft³ | 186.86506 imp gal |
| 50 ft³ | 311.44177 imp gal |
| 75 ft³ | 467.16266 imp gal |
| 100 ft³ | 622.88355 imp gal |
| 500 ft³ | 3,114.4177 imp gal |
| 1,000 ft³ | 6,228.8355 imp gal |
When you need to convert cubic feet to Imperial gallons
- Scaling recipes between metric millilitres and US cups, pints or fluid ounces.
- Comparing fuel prices and tank capacities between countries.
- Working out paint, fertiliser or pool chemical quantities from instructions written for another market.
Getting a feel for the scale
A converted number is easier to trust when you can picture it. These reference points let you sanity-check the result at a glance.
Imperial gallon (imp gal)
- An Imperial gallon is about 1.2 US gallons
- UK fuel prices are quoted per litre, not per gallon
Common mistakes to avoid
- Dividing when you should multiply. Because 1 cubic foot = 6.22884 Imperial gallons, the answer should be larger than the number you started with.
- Mixing US and Imperial liquid measures. The Imperial gallon and pint are about 20% larger than their US counterparts, which is enough to ruin a recipe or misstate fuel economy.
- Rounding too early. Convert first at full precision, then round the final answer to the precision the task actually needs.
How precise does the answer need to be?
Cooking tolerates rounding to the nearest 5 mL or quarter cup. Dosing, chemistry and pool treatment do not — keep the full converted value there.
How these units are defined
- Cubic foot (ft³): Used for shipping volume, gas metering and appliances. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
- Imperial gallon (imp gal): Exactly 4.54609 liters — the gallon used in the UK and historically in Canada. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
Related conversions
- Imperial gallons to Cubic feet
- Cubic feet to Milliliters
- Cubic feet to Liters
- Cubic feet to Cubic meters
- Cubic feet to US teaspoons
- Cubic feet to US tablespoons
- Cubic feet to US fluid ounces
- Cubic feet to US cups
- Cubic feet to US liquid pints
- Cubic feet to US liquid quarts
- Cubic feet to US liquid gallons
- Cubic feet to Imperial pints
Frequently asked questions
- What is 1 cubic foot in Imperial gallons?
- 1 cubic foot is equal to 6.22883546 Imperial gallons.
- How many cubic feet are in one Imperial gallon?
- There are 0.160543653 cubic feet in 1 Imperial gallon.
- How do you convert cubic feet to Imperial gallons?
- Multiply the number of cubic feet by 6.22883546 — or use the formula imp gal = ft³ × 6.22883546.
- What is 6 cubic feet in Imperial gallons?
- 6 cubic feet is 37.3730128 Imperial gallons. 6 × 6.22883546 = 37.3730128 Imperial gallons.
- Is the cubic feet to Imperial gallons conversion exact?
- Yes. The relationship is fixed by definition, so 6.22883545904 is an exact conversion factor — only the displayed result is rounded.
- Does this use US or Imperial Imperial gallons?
- Gallons differ by region. A US liquid gallon is exactly 3.785411784 liters; an Imperial (UK) gallon is exactly 4.54609 liters — about 20% larger. This page uses the Imperial gallon.