Sumwise

US gallons to cubic meters

cubic meters = US gallons × 0.00378541

Reverse: cubic meters to US gallons

How to convert US gallons to cubic meters

One US gallon is 0.00378541 cubic meters, so multiply the number of US gallons by 0.00378541. For example, 20 US gallons is 20 × 0.00378541 = 0.07570824 cubic meters. To go back, divide by the same number, or multiply by 264.172052.

Quick estimate

Multiplying by about 0.004 gets within 5.7% 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.

US gallonscubic meters
1 gal0.00378541 m3
2 gal0.00757082 m3
3 gal0.01135624 m3
4 gal0.01514165 m3
5 gal0.01892706 m3
6 gal0.02271247 m3
7 gal0.02649788 m3
8 gal0.03028329 m3
9 gal0.03406871 m3
10 gal0.03785412 m3
11 gal0.04163953 m3
12 gal0.04542494 m3
13 gal0.04921035 m3
14 gal0.05299576 m3
15 gal0.05678118 m3
16 gal0.06056659 m3
17 gal0.064352 m3
18 gal0.06813741 m3
19 gal0.07192282 m3
20 gal0.07570824 m3
25 gal0.09463529 m3
30 gal0.11356235 m3
40 gal0.15141647 m3
50 gal0.18927059 m3
60 gal0.22712471 m3
70 gal0.26497882 m3
75 gal0.28390588 m3
80 gal0.30283294 m3
90 gal0.34068706 m3
100 gal0.37854118 m3
120 gal0.45424941 m3
150 gal0.56781177 m3
200 gal0.75708236 m3
250 gal0.94635295 m3
300 gal1.135624 m3
400 gal1.514165 m3
500 gal1.892706 m3
750 gal2.839059 m3
1,000 gal3.785412 m3
1,500 gal5.678118 m3
2,000 gal7.570824 m3
5,000 gal18.927059 m3
10,000 gal37.854118 m3

Questions

How many cubic meters are in a US gallon?

0.00378541 cubic meters.

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

Put the value in A1 and type =A1*0.00378541, 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.