Convert cubic meters, liters, milliliters, cubic centimeters, cubic feet, cubic inches, or cubic yards to US or Imperial gallons.
Assumptions Assumptions
- Conversions are volume-to-volume only; no density or temperature corrections.
- Results are rounded to 6 decimal places or scientific notation for very small or large values.
- Unit standards used: 1 m³ = 1000 L; 1 US gal = 3.785411784 L; 1 Imperial gal = 4.54609 L.
- Additional base factors: 1 ft³ = 28.316846592 L; 1 in³ = 0.016387064 L; 1 yd³ = 764.554857984 L; 1 mL = 1 cm³ = 0.001 L.
- US and Imperial (UK) gallons are different—choose the correct gallon type for your use case.
When to Use This Calculator
- Freight and logistics: convert shipment CBM to gallons for liquid cargo planning.
- Tank sizing for water, fuel, and chemicals (aquariums, pools, storage tanks).
- Engineering and construction: convert cubic units (ft³, in³, yd³, m³) to gallons for capacity checks.
Input Definitions
- Cubic Volume — enter value in m³ (CBM), liters, mL, cm³, ft³, in³, or yd³.
- Gallons — choose US gallons or Imperial (UK) gallons.
- Conversions — US: gal ≈ m³ × 264.172052; m³ = gal × 0.003785411784. Imperial: gal ≈ m³ × 219.969248; m³ = gal × 0.00454609.
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Cbm to Gallons Formula
The following formulas convert cubic meters (CBM) to gallons and back using US gallons.
- 1 m³ = 1000 L
- 1 US gallon = 3.785411784 L
- 1 Imperial gallon (UK) = 4.54609 L
- 1 ft³ = 28.316846592 L; 1 in³ = 0.016387064 L; 1 yd³ = 764.554857984 L
- 1 mL = 1 cm³ = 0.001 L
How do you convert CBM to gallons? Choose Gallons, enter cubic volume and its unit, choose the result gallon type, and select Calculate. For CBM, divide 1000 × CBM by 3.785411784 for US liquid gallons or by 4.54609 for Imperial gallons.
How do you convert gallons to CBM? Choose Cubic volume, enter gallons and their type, choose the result volume unit, and select Calculate. For cubic meters, multiply US gallons by 0.003785411784 or Imperial gallons by 0.00454609.
Cbm to Gallons Conversion Table
| Cubic Meters (m³) | US Gallons |
|---|---|
| 0.001 | 0.264 |
| 0.005 | 1.321 |
| 0.010 | 2.642 |
| 0.050 | 13.209 |
| 0.100 | 26.417 |
| 0.250 | 66.043 |
| 0.500 | 132.086 |
| 0.750 | 198.129 |
| 1.000 | 264.172 |
| 2.000 | 528.344 |
| 3.000 | 792.516 |
| 4.000 | 1056.688 |
| 5.000 | 1320.860 |
| 10.000 | 2641.721 |
| * US customary: 1 m³ ≈ 264.172052 gallons. | |
Example Problem
Convert 3.2 m³ to US gallons.
Use the exact US liquid gallon definition: US gal = CBM × 1000 ÷ 3.785411784.
US gal = 3.2 × 1000 ÷ 3.785411784 ≈ 845.350568 US gal
