Convert Cubic Meters to US Gallons
1 cubic meter (m³) equals 264.1720524 US gallons (gal (US)).
1 m³ = 264.1720524 gal (US)
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk cubic meter to US gallon converter to paste a column from Excel.
How to Convert Cubic Meter to US Gallon
- 1 m³ = 264.1720524 gal (US)
- 1 gal (US) = 0.003785411784 m³
- Example: convert 15 m³ to gal (US): 15 m³ = 15 × 264.1720524 gal (US) = 3962.580785 gal (US)
Formula
gal (US) = m³ × 264.1720523581
Derivation from SI units:
- 1 m³ = 1 m × 1 m × 1 m
- 1 US gal = 231 in³ = 231 × (0.0254 m)³ = 0.003785411784 m³
Both units are defined exactly, so the factor is exact. Cubic Meter definition: cubic meter; US Gallon definition: US gallon.
Worked examples
- 1 m³ holds 264.1720524 gal (US).
1 m³ × 264.1720524 = 264.1720524 gal (US) - A 10 m³ water tank holds 2641.720524 gal (US).
10 m³ × 264.1720524 = 2641.720524 gal (US)
Cubic Meter to US Gallon conversion table
| Cubic Meters (m³) | US Gallons (gal (US)) |
|---|---|
| 0.001 m³ | 0.2641720524 gal (US) |
| 0.01 m³ | 2.641720524 gal (US) |
| 0.05 m³ | 13.20860262 gal (US) |
| 0.1 m³ | 26.41720524 gal (US) |
| 0.25 m³ | 66.04301309 gal (US) |
| 0.5 m³ | 132.0860262 gal (US) |
| 1 m³ | 264.1720524 gal (US) |
| 2 m³ | 528.3441047 gal (US) |
| 5 m³ | 1320.860262 gal (US) |
| 10 m³ | 2641.720524 gal (US) |
| 20 m³ | 5283.441047 gal (US) |
| 25 m³ | 6604.301309 gal (US) |
| 33 m³ | 8717.677728 gal (US) |
| 50 m³ | 13208.60262 gal (US) |
| 67 m³ | 17699.52751 gal (US) |
| 100 m³ | 26417.20524 gal (US) |
| 200 m³ | 52834.41047 gal (US) |
| 500 m³ | 132086.0262 gal (US) |
| 1000 m³ | 264172.0524 gal (US) |
| 10000 m³ | 2641720.524 gal (US) |
Where it's used
Metric tank and water volumes are converted to US gallons for American customers and equipment.
Cubic Meter to other volume units
| Conversion | 1 m³ equals |
|---|---|
| cubic meter to liter | 1000 L |
| cubic meter to milliliter | 1000000 mL |
| cubic meter to cubic centimeter | 1000000 cm³ |
| cubic meter to cubic foot | 35.31466672 ft³ |
| cubic meter to cubic inch | 61023.74409 in³ |
| cubic meter to US gallon | 264.1720524 gal (US) |
| cubic meter to imperial gallon | 219.9692483 gal (imp) |
Frequently asked questions
How many gallons are in a cubic meter?
1 m³ = 264.1720524 gal (US).
How many US gallons are in 1 cubic meter?
1 m³ = 264.1720524 gal (US).
How do I convert cubic meters to US gallons?
Multiply the value in m³ by 264.1720524. For example, 15 m³ × 264.1720524 = 3962.580785 gal (US).
Is the m³ to gal (US) conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 2, coherent derived units.
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "gallon [U.S.] (gal)".
- NIST Handbook 44, Appendix C: General Tables of Units of Measurement, National Institute of Standards and Technology , Appendix C.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Cubic Meters to US Gallons. Retrieved October 17, 2026, from https://scientificconverters.com/volume/cubic-meters-to-us-gallons/
IEEE
Scientific Converters, "Convert Cubic Meters to US Gallons," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/volume/cubic-meters-to-us-gallons/