Convert Gallons (US) to Cubic Meters

1 Gallons (US) = 0.003785 Cubic Meters
gal
0.003785
Formula: m³ = gal × 0.003785
Gallons (US) (gal)Cubic Meters (m³)
10.003785
20.007571
50.018927
100.037854
250.094635
500.189271
1000.378541
2500.946353
5001.892705
10003.78541
m³ = gal × 0.003785

Step-by-Step Examples

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Frequently Asked Questions

How do I convert Gallons (US) to Cubic Meters?

Multiply the value in Gallons (US) by 0.00378541. For example, 10 gal = 0.0378541 m³.

What is the difference between US and UK gallons?

A US gallon is 3.78541 liters, while a UK (Imperial) gallon is 4.54609 liters — about 20% larger. Always check which gallon is being referenced.

How many Cubic Meters are in one Gallon?

One gal equals 0.00378541 m³. Use this factor for any conversion between these units.