Convert volume units — liters, gallons, cups, milliliters, cubic meters, barrels and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 m³ | 0.264172 gal | |
| 0.01 m³ | 2.64172 gal | |
| 0.1 m³ | 26.4172 gal | |
| 1 m³ | 264.172 gal | |
| 5 m³ | 1320.86 gal | |
| 10 m³ | 2641.72 gal | |
| 50 m³ | 13208.6 gal | |
| 100 m³ | 26417.2 gal | |
| 1000 m³ | 264172 gal |
Common cubic meter values converted to us gallon — factor: 1 m³ = 264.2 gal
| Cubic Meter (m³) | US Gallon (gal) | Context |
|---|---|---|
| 0.001 m³ | 0.2642 gal | — |
| 0.01 m³ | 2.642 gal | — |
| 0.1 m³ | 26.42 gal | — |
| 0.5 m³ | 132.1 gal | — |
| 1 m³ | 264.2 gal | — |
| 2 m³ | 528.3 gal | — |
| 5 m³ | 1,321 gal | — |
| 10 m³ | 2,642 gal | — |
| 20 m³ | 5,283 gal | — |
| 50 m³ | 1.321e+04 gal | — |
| 100 m³ | 2.642e+04 gal | — |
| 200 m³ | 5.283e+04 gal | — |
| 500 m³ | 1.321e+05 gal | — |
| 1,000 m³ | 2.642e+05 gal | — |
| 5,000 m³ | 1,321,000 gal | — |
Converting cubic meter to us gallon comes up frequently in cooking, chemistry, medicine, and engineering. A recipe written in metric units may need to be adapted for a kitchen using us gallon, or a laboratory protocol may specify volumes in cubic meter that need to be measured with equipment calibrated in us gallon.
In everyday use, knowing that 5 m³ = 1321 gal and 10 m³ = 2642 gal covers most common situations. For bulk calculations, 100 m³ = 2.642e+04 gal is a useful anchor. The reverse conversion — us gallon back to cubic meter — uses the factor 0.003785, so 1 gal = 0.003785 m³.
All conversions use the internationally recognized factor of exactly 1 m³ = 264.2 gal. Calculations are performed in IEEE 754 double-precision floating point, giving accuracy to at least 8 significant figures — more than sufficient for any practical application.
Formula: US Gallon = Cubic Meter × 264.17218
Multiply any cubic meter value by 264.17218 to get us gallon. One cubic meter equals 264.17218 gal.
Reverse: Cubic Meter = US Gallon × 0.00378541
1 m³ = 264.17218 gal. Memorize this for instant mental estimates.
Use 264.1722 as a quick mental factor. Multiply your cubic meters value by this to estimate US gallons.
To verify: multiply your result by 0.00378541 to recover the original m³ value.
Calculates concrete pour volumes, earthwork excavation, and tank capacities in cubic meters.
Estimates room volumes in m³ for HVAC thermal load and ventilation design.
Measures natural gas consumption in standard cubic meters for billing.
Calculates cargo volume in CBM (cubic meters) for ocean freight pricing.
Measures river discharge and reservoir volumes in cubic meters per second.
Sizes reactor vessels and storage tanks using cubic meter capacity.
The cubic meter is the SI derived unit of volume, formally defined in 1960 at the 11th General Conference on Weights and Measures. It equals 1,000 liters or 1,000,000 milliliters.
Cubic meters are standard for large-scale volumes: natural gas is sold in m³, swimming pools are measured in m³, and bulk shipping containers are rated by cubic meter capacity.
Interesting fact: One cubic meter of water at 4°C weighs exactly 1,000 kg. The Pacific Ocean contains roughly 7.1 × 10²⁰ cubic meters of water.
The US liquid gallon is defined as exactly 231 cubic inches, or 3.785411784 liters. It traces its origins to the Queen Anne wine gallon of 1707, which American colonies adopted.
The US gallon differs from the UK Imperial gallon by about 16.5%. This matters for fuel economy: a US MPG figure is lower than the equivalent UK MPG for the same car.
Interesting fact: The United States, Liberia, and Myanmar are the only countries using the US gallon as a primary everyday volume unit.