Convert cubic meters to US gallons
Converting cubic meters to US gallons is a common volume task, whether you are checking a recipe, a spec sheet, a travel distance or a homework problem. Since 1 m³ equals 264.172 gal, the math is a single multiplication — and this page does it for you instantly, with the formula, a table of common values and answers to the questions people ask most.
Exact factor
How to convert cubic meters to US gallons
To convert cubic meters to US gallons, multiply the number of cubic meters by 264.172. For example, 10 m³ × 264.172 = 2,641.72 gal.
gal = m³ × 264.172
- Write down the value in cubic meters you want to convert.
- Multiply it by 264.172 (the exact m³→gal factor).
- The result is your value in US gallons. Check it below with the converter or the table.
Conversion table
Common values of cubic meters and their equivalents in US gallons:
| m³ | gal |
|---|---|
| 1 | 264.172 |
| 2 | 528.344 |
| 3 | 792.516 |
| 4 | 1,056.69 |
| 5 | 1,320.86 |
| 10 | 2,641.72 |
| 20 | 5,283.44 |
| 25 | 6,604.3 |
| 50 | 13,208.6 |
| 100 | 26,417.2 |
| 250 | 66,043 |
| 500 | 132,086 |
About these units
Cubic Meter (m³). A cubic meter equals 1,000 liters, the SI unit of volume. Water meters, concrete orders, shipping containers and natural gas are measured in cubic meters.
US Gallon (gal). The US liquid gallon is defined as exactly 3.785411784 liters, or 128 US fluid ounces. Fuel economy and milk containers in the United States use gallons.
Frequently asked questions
How do I convert cubic meters to US gallons?
To convert cubic meters to US gallons, multiply the number of cubic meters by 264.172. For example, 10 m³ × 264.172 = 2,641.72 gal. Or skip the math: type the value into the converter at the top of this page and the result updates instantly.
How many US gallons are in 1 cubic meter?
1 m³ = 264.172 gal. That is the fixed relationship used by this converter and by international standards.
How many cubic meters are in 1 us gallon?
1 gal = 0.00378541 m³. If you are converting in the opposite direction, use our US Gallon to Cubic Meter converter for the dedicated table and FAQ.
Is the cubic meters to US gallons conversion exact?
Yes. Both units are defined by international agreement, so the factor of 264.172 is exact. Displayed results are rounded to 6 significant digits only for readability.
What is cubic meter used for?
A cubic meter equals 1,000 liters, the SI unit of volume. Water meters, concrete orders, shipping containers and natural gas are measured in cubic meters.