UnitConFuel Efficiency (Volume)
Fuel efficiency by volume measures how much energy is stored in each unit of fuel volume. It is useful when comparing fuels that must fit inside tanks, storage vessels, or distribution systems. This converter helps bridge SI and customary volumetric energy units. It is commonly used in transport, process engineering, and fuel analysis.
Common conversions
| From | To |
|---|---|
| 1 Megajoule per Cubic Meter | 26.83922 BTU per Cubic Foot |
| 1 BTU per Cubic Foot | 37.2589 Kilojoule per Cubic Meter |
| 1 BTU per US Gallon | 278.7167 Kilojoule per Cubic Meter |
| 30 Megajoule per Cubic Meter | 805.1767 BTU per Cubic Foot |
| 1 Kilocalorie per Cubic Meter | 4.184 Kilojoule per Cubic Meter |
Frequently asked questions
Gasoline has a high volumetric energy density compared with many alternative fuels. Exact values vary by composition, temperature, and reference standard.
Ethanol generally carries less energy per liter than gasoline. That is one reason ethanol blends often reduce fuel economy.
Volumetric energy density is energy per unit volume. It matters whenever tank size or storage volume is limited.