US Gallon to Cubic Meter Conversion Chart
| US Gallon (gallon) | Cubic Meter (m3) | Reference Benchmark | Formula Step |
|---|---|---|---|
| 1 gallon | 0.003785 m3 | One Full US Liquid Gallon Container Volume | 1 × 0.003785412 = 0.003785 cu-m |
| 2 gallon | 0.007571 m3 | Two-Gallon Garden Fertilizer Watering Basin Measure | 2 × 0.003785412 = 0.007571 cu-m |
| 5 gallon | 0.018927 m3 | Five-Gallon Commercial Hardware Paint Pail Bucket | 5 × 0.003785412 = 0.018927 cu-m |
| 10 gallon | 0.037854 m3 | Ten-Gallon Marine Fuel Reserve Auxiliary Tank | 10 × 0.003785412 = 0.037854 cu-m |
| 20 gallon | 0.075708 m3 | Twenty-Gallon Agricultural Herbicide Spray Tank | 20 × 0.003785412 = 0.075708 cu-m |
| 50 gallon | 0.189271 m3 | Standard Commercial Fifty-Gallon Industrial Poly Drum | 50 × 0.003785412 = 0.189271 cu-m |
| 100 gallon | 0.378541 m3 | Hundred-Gallon Livestock Watering Trough Reservoir | 100 × 0.003785412 = 0.378541 cu-m |
| 200 gallon | 0.757082 m3 | Dual-Hundred Gallon Industrial Batch Processing Tank | 200 × 0.003785412 = 0.757082 cu-m |
| 264.17 gallon | 1 m3 | One-Cubic-Meter Intermediate Bulk Container Tote | 264.17 × 0.003785412 = 1 cu-m |
| 500 gallon | 1.892706 m3 | Commercial Agricultural Liquid Fertilizer Nurse Tank | 500 × 0.003785412 = 1.892706 cu-m |
| 1000 gallon | 3.785412 m3 | Thousand-Gallon Domestic Heating Oil Underground Tank | 1000 × 0.003785412 = 3.785412 cu-m |
| 2000 gallon | 7.570824 m3 | Municipal Fire Service Pumper Tanker Payload Reserve | 2000 × 0.003785412 = 7.570824 cu-m |
| 5000 gallon | 18.927059 m3 | Commercial Concrete Transport Mixer Water Supply Tank | 5000 × 0.003785412 = 18.927059 cu-m |
| 10000 gallon | 37.854118 m3 | Highway Petroleum Transport Semi-Trailer Tanker | 10000 × 0.003785412 = 37.854118 cu-m |
| 20000 gallon | 75.708236 m3 | Industrial Factory Emergency Water Reserve Basin | 20000 × 0.003785412 = 75.708236 cu-m |
US Gallon to Cubic Meter Formula & Unit Definitions
One US liquid gallon equals exactly 0.003785411784 cubic meters (1 gal ≈ 0.003785 m³). To convert US gallons to cubic meters, multiply by 0.003785412 (or divide by 264.172). To reverse from cubic meters to US gallons, multiply by 264.172.
Quick Estimation: Every 264 US gallons equal 1 cubic meter. To quickly estimate cubic meters, divide your gallon count by 264.
US Gallon Scale (gal)
US Customary Liquid Unit- Creator & Origin: Codified under Queen Anne’s 1707 British wine gallon of 231 cubic inches.
- Standard Definition: Defined by NIST as exactly 3.785411784 liters (0.003785412 m³).
- Everyday Focus: Retail automotive fuel, supermarket milk jugs, and paint cans in the US.
Cubic Meter Scale (m³)
SI Base Volume Unit- Creator & Origin: Established in 1795 as a fundamental three-dimensional metric derived unit.
- Standard Definition: The coherent SI derived unit of volume (1 m × 1 m × 1 m = 1,000 L).
- Everyday Focus: Municipal water billing, swimming pools, concrete pours, and freight logistics.
Frequently Asked Questions
Q.How many cubic meters are in one US gallon?
One US liquid gallon equals exactly 0.003785411784 cubic meters (approximately 0.003785 m³ or 3.78541 L).
Q.What is the formula to convert US gallons to cubic meters?
The formula is: Cubic Meters = US Gallons × 0.003785412 (or US Gallons ÷ 264.172053). For example, 1,000 gal × 0.00378541 ≈ 3.7854 m³.
Q.How do I reverse this calculation from cubic meters to US gallons?
To convert cubic meters back to US gallons, multiply by 264.172053. You can also use our Cubic Meter to US Gallon Converter.
Q.Is this calculation based on US liquid or dry gallons?
This converter calculates standard US liquid gallons (0.00378541 m³). A US dry gallon equals approximately 0.00440488 m³.