UK Gallons to Cubic Meters Converter

How to convert imperial gallons to cubic meters

Formulam³ = gal (UK) × 0.00454609

Multiply the value in imperial gallons by 0.00454609. To go the other way, multiply by 219.9692483 (or divide by 0.00454609).

An imperial gallon is smaller than a cubic meter: it takes 219.9692483 imperial gallons to make one cubic meter.

Worked examples

1 imperial gallon1 gal (UK) × 0.00454609 = 0.00454609 m³
5 imperial gallons5 gal (UK) × 0.00454609 = 0.02273045 m³
10 imperial gallons10 gal (UK) × 0.00454609 = 0.0454609 m³
20 imperial gallons20 gal (UK) × 0.00454609 = 0.0909218 m³
100 imperial gallons100 gal (UK) × 0.00454609 = 0.454609 m³

Imperial gallons to cubic meters conversion table

Values are calculated by the conversion engine and rounded to 8 significant figures.

Imperial gallons to cubic meters: 0.1–10 gal (UK)
Imperial gallons (gal (UK))	Cubic meters (m³)
0.1 gal (UK)	0.000454609 m³
0.25 gal (UK)	0.0011365225 m³
0.5 gal (UK)	0.002273045 m³
1 gal (UK)	0.00454609 m³
2 gal (UK)	0.00909218 m³
3 gal (UK)	0.01363827 m³
4 gal (UK)	0.01818436 m³
5 gal (UK)	0.02273045 m³
6 gal (UK)	0.02727654 m³
7 gal (UK)	0.03182263 m³
8 gal (UK)	0.03636872 m³
9 gal (UK)	0.04091481 m³
10 gal (UK)	0.0454609 m³

Imperial gallons to cubic meters: 12–1,000 gal (UK)
Imperial gallons (gal (UK))	Cubic meters (m³)
12 gal (UK)	0.05455308 m³
15 gal (UK)	0.06819135 m³
20 gal (UK)	0.0909218 m³
25 gal (UK)	0.11365225 m³
30 gal (UK)	0.1363827 m³
40 gal (UK)	0.1818436 m³
50 gal (UK)	0.2273045 m³
75 gal (UK)	0.34095675 m³
100 gal (UK)	0.454609 m³
250 gal (UK)	1.1365225 m³
500 gal (UK)	2.273045 m³
1,000 gal (UK)	4.54609 m³

About the units

Imperial gallon (gal (UK))

Exactly 4.54609 L, about 1.2 US gallons. Used in the UK for fuel economy (mpg) figures. One imperial gallon equals 0.00454609 cubic meters (m³).

Cubic meter (m³)

The SI unit of volume, equal to 1,000 L. Water bills, concrete and shipping volumes use cubic metres.

Frequently asked questions

How many cubic meters are in one imperial gallon?

There are 0.00454609 cubic meters in one imperial gallon, and this value is exact by definition.

How do I convert imperial gallons to cubic meters?

Multiply the number of imperial gallons by 0.00454609. For example, 10 gal (UK) × 0.00454609 = 0.0454609 m³.

How many imperial gallons are in one cubic meter?

One cubic meter equals 219.9692483 imperial gallons. That is the reverse factor, 1 ÷ 0.00454609.

What is 10 imperial gallons in cubic meters?

10 gal (UK) = 0.0454609 m³.

Is this gal (UK) to m³ converter accurate?

Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.