Convert US gallons to cubic meters

1 US gallon = 0.003785412 cubic meters · m³ = gal ÷ 264.1720524

gal
Cubic meters
0.003785412m³

1 US gallon = 0.003785412 cubic meters

When you need this conversion

This conversion goes from US gallons, the fuel and liquid volume unit in the US, to cubic meters, used for water usage, concrete, and shipping volume. Both measure the same physical quantity, so the conversion is exact — the difference is which unit your source, tool, or region happens to use.

US gallons to cubic meters conversion table

Conversion table from US gallons to cubic meters
US gallons (gal)Cubic meters (m³)
1 gal0.003785412 m³
2 gal0.007570824 m³
3 gal0.011356 m³
5 gal0.018927 m³
10 gal0.037854 m³
15 gal0.056781 m³
20 gal0.075708 m³
25 gal0.094635 m³
50 gal0.189271 m³
75 gal0.283906 m³
100 gal0.378541 m³
250 gal0.946353 m³
500 gal1.8927 m³
1,000 gal3.7854 m³

The formula

m³ = gal ÷ 264.1720524

Because both units measure volume, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.

Convert the other way

Cubic meters to US gallons →

Related volume conversions

All volume conversions →

Frequently asked questions

How many cubic meters are in a US gallon?
There are 0.003785412 cubic meters in 1 US gallon. The formula is m³ = gal ÷ 264.1720524.
How do you convert US gallons to cubic meters?
Use the formula m³ = gal ÷ 264.1720524. For example, 10 US gallons equals 0.037854 cubic meters.
Is the US gallons to cubic meters conversion exact?
Yes. US gallons and cubic meters are both units of volume, related by an exact defined factor. Displayed results are rounded for readability.
What is gal short for?
gal is the standard symbol for US gallon (also written as gallons). m³ is the symbol for cubic meter.