ConvBolt — Unit ConverterCubic meters to US gallons Converter
Converting cubic meters to US gallons is a multiplication by a fixed factor: 1 m³ = 264.1721 gal. The table below covers the values people look up most often, and the formula section shows exactly where that factor comes from.
Because one cubic meter works out to 264.1721 gal, the us gallon is the far larger unit of the two: a figure given in us gallon always carries a larger number than the same measurement in cubic meter. A chart drawn in m³ can hide that, so check which label the axis uses before you compare two readings.
When a container size is certified in US gallons but you are dosing in cubic meters, it pays to convert from the certified figure rather than from a rounded label.
The conversion factor used here is 264.1721 gal per cubic meter (4 significant digits as shown). Kept to seven figures it covers professional measurement; if you round it to two or three decimals for a spreadsheet, the error scales with the input — at a value of 1,000 m³ a factor rounded to three decimals can be off by a measurable amount. The reverse direction uses 0.003785412 m³ per gal, the exact reciprocal, so a round trip through both pages returns your original number.
Cubic meters to US gallons formula
Use this formula to convert any cubic meter value to US gallons:
Worked example: 100 m³ × 264.1721 = 26417.21 gal.
Cubic meters to US gallons conversion table
| Cubic meters (m³) | US gallons (gal) |
|---|---|
| 0.5 m³ | 132.086 gal |
| 1 m³ | 264.1721 gal |
| 2 m³ | 528.3441 gal |
| 5 m³ | 1320.86 gal |
| 10 m³ | 2641.721 gal |
| 20 m³ | 5283.441 gal |
| 50 m³ | 13208.6 gal |
| 100 m³ | 26417.21 gal |
| 500 m³ | 132086 gal |
| 1000 m³ | 264172.1 gal |
How to convert cubic meters to US gallons
Multiply the cubic meter value by 264.1721 to get the equivalent in US gallons. This single factor works for every value in the table above and for anything else you need — there is no per-value adjustment, which is why a conversion table and a calculator always agree.
If you need the opposite direction, use the US gallons to Cubic meters converter instead of dividing by hand; both pages use the same source factors. For every other m³ conversion in one place, see the m³ conversion hub.
Frequently asked questions
How many US gallons are in 1 cubic meter?
1 cubic meter = 264.1721 gal.
What is 100 cubic meters in US gallons?
100 m³ = 26417.21 gal.
Is converting cubic meters to US gallons the same as US gallons to cubic meters?
No — the direction changes the multiplier. The reverse conversion (1 gal = 0.003785412 m³) is on the US gallons to Cubic meters page.
Related conversions
Try the ConvBolt Unit Converter for any other volume unit, browse the Volume conversions, or read our conversion guides.