Imperial gallons to cubic meters

cubic meters = imperial gallons × 0.00454609

Reverse: cubic meters to imperial gallons

How to convert imperial gallons to cubic meters

One imperial gallon is 0.00454609 cubic meters, so multiply the number of imperial gallons by 0.00454609. For example, 20 imperial gallons is 20 × 0.00454609 = 0.0909218 cubic meters. To go back, divide by the same number, or multiply by 219.969248.

Quick estimate

Multiplying by about 0.005 gets within 10.0% of the exact answer, which is enough to check that a result makes sense.

Where it comes up

Volume conversions come up in recipes, fuel economy, drink and bottle sizes, garden and pool water, and engine sizes.

imperial gallons	cubic meters
1 impgal	0.00454609 m3
2 impgal	0.00909218 m3
3 impgal	0.01363827 m3
4 impgal	0.01818436 m3
5 impgal	0.02273045 m3
6 impgal	0.02727654 m3
7 impgal	0.03182263 m3
8 impgal	0.03636872 m3
9 impgal	0.04091481 m3
10 impgal	0.0454609 m3
11 impgal	0.05000699 m3
12 impgal	0.05455308 m3
13 impgal	0.05909917 m3
14 impgal	0.06364526 m3
15 impgal	0.06819135 m3
16 impgal	0.07273744 m3
17 impgal	0.07728353 m3
18 impgal	0.08182962 m3
19 impgal	0.08637571 m3
20 impgal	0.0909218 m3
25 impgal	0.11365225 m3
30 impgal	0.1363827 m3
40 impgal	0.1818436 m3
50 impgal	0.2273045 m3
60 impgal	0.2727654 m3
70 impgal	0.3182263 m3
75 impgal	0.34095675 m3
80 impgal	0.3636872 m3
90 impgal	0.4091481 m3
100 impgal	0.454609 m3
120 impgal	0.5455308 m3
150 impgal	0.6819135 m3
200 impgal	0.909218 m3
250 impgal	1.136523 m3
300 impgal	1.363827 m3
400 impgal	1.818436 m3
500 impgal	2.273045 m3
750 impgal	3.409568 m3
1,000 impgal	4.54609 m3
1,500 impgal	6.819135 m3
2,000 impgal	9.09218 m3
5,000 impgal	22.73045 m3
10,000 impgal	45.4609 m3

Questions

How many cubic meters are in a imperial gallon?

0.00454609 cubic meters.

How do I convert imperial gallons to cubic meters in a spreadsheet?

Put the value in A1 and type =A1*0.00454609, then fill the formula down the column.

Are the values in the table exact?

They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.