US gallons to Cubic meters – US gallon to cubic meter Converter
1 gal = 0.003785411784 m³
Formula
m³ = gal × 0.003785411784
US gallons to cubic meters conversion table
| US gallons (gal) | cubic meters (m³) |
|---|---|
| 0.5 gal | 0.00189271 m³ |
| 1 gal | 0.003785411784 m³ |
| 2 gal | 0.00757082 m³ |
| 3 gal | 0.0113562 m³ |
| 5 gal | 0.0189271 m³ |
| 10 gal | 0.0378541 m³ |
| 20 gal | 0.0757082 m³ |
| 25 gal | 0.0946353 m³ |
| 50 gal | 0.189271 m³ |
| 75 gal | 0.283906 m³ |
| 100 gal | 0.378541 m³ |
| 250 gal | 0.946353 m³ |
| 500 gal | 1.89271 m³ |
| 1000 gal | 3.78541 m³ |
| 5000 gal | 18.9271 m³ |
US gallons and cubic meters are both volume units. One US gallon equals 0.003785411784 cubic meters; enter any value above for an instant result, or use the table for common conversions.
Sanity-check examples
1 gal = 0.00378541 m³10 gal = 0.0378541 m³2.5 gal = 0.00946353 m³
Common pitfalls and look-alike units
Gallons differ: the US gallon ≈ 3.78541 L while the imperial gallon ≈ 4.546 L — about 20% apart, so check which one a recipe or fuel figure means. A US cup (~236.6 mL) is also not the metric 250 mL cup.
Frequently asked questions
How many cubic meters are in a US gallon?
1 US gallon (gal) equals 0.003785411784 cubic meter (m³).
How do I convert US gallons to cubic meters?
Multiply the US gallon value by 0.003785411784 to get cubic meter — for example, 2 US gallons = 0.00757082 cubic meter.
How do I convert cubic meters back to US gallons?
1 cubic meter is approximately 264.172 US gallon. Use the swap button or the reverse conversion page linked on this page.