Convert US Gallon (gal) to Cubic Meter (m³) instantly. Enter any value — result updates live.
Converting US Gallon to Cubic Meter is a common volume conversion. One us gallon (gal) equals 0.00378541 cubic meter (m³). US gallons are used for fuel, beverages, and liquid storage in the United States.
This conversion is commonly needed for aquarium and pool sizing, shipping liquid products, home brewing and winemaking. Cubic meters measure large volumes in construction, shipping, and water management.
To put us gallon in perspective: a fish tank (10–20 gal). In cubic meter, common references include an average swimming pool (about 50 m³).
A US gallon (3.785 L) is different from an Imperial gallon (4.546 L), which can cause confusion in international recipes.
A cubic meter of water weighs almost exactly 1,000 kilograms (1 metric ton) at standard conditions, a handy rule of thumb in engineering and construction.
People frequently convert between us gallon and cubic meter for:
| US Gallon (gal) | Cubic Meter (m³) |
|---|---|
| 1 gal | 0.00378541 m³ |
| 2 gal | 0.00757082 m³ |
| 5 gal | 0.01892705 m³ |
| 10 gal | 0.0378541 m³ |
| 15 gal | 0.05678115 m³ |
| 20 gal | 0.0757082 m³ |
| 25 gal | 0.09463525 m³ |
| 30 gal | 0.1135623 m³ |
| 50 gal | 0.1892705 m³ |
| 100 gal | 0.378541 m³ |
| 200 gal | 0.757082 m³ |
| 500 gal | 1.89271 m³ |
| 1000 gal | 3.78541 m³ |