Fuel Energy per Volume Converter
Convert fuel heating values and energy density by volume between MJ/m³, MJ/L, kWh/m³, kWh/L, BTU/ft³ and BTU per gallon.
Convert fuel energy per volume
Result
Fuel Energy per Volume units
Every unit below converts to every other one in the calculator. Values are relative to the base unit, the joule per cubic meter (J/m³).
| Unit | Symbol | System | Value |
|---|---|---|---|
| Joule per cubic meter | J/m³ | SI | Base unit |
| Kilojoule per cubic meter | kJ/m³ | SI | = 1000 J/m³ |
| Megajoule per cubic meter | MJ/m³ | SI | = 1000000 J/m³ |
| Megajoule per liter | MJ/L | SI-accepted | = 1000000000 J/m³ |
| Kilowatt-hour per cubic meter | kWh/m³ | SI-accepted | = 3600000 J/m³ |
| Kilowatt-hour per liter | kWh/L | SI-accepted | = 3600000000 J/m³ |
| BTU per cubic foot | BTU/ft³ | US customary | ≈ 37258.94581 J/m³ |
| BTU per gallon (US) | BTU/gal | US customary | ≈ 278716.2699 J/m³ |
Joule per cubic meter quick reference
| Joule per cubic meter | Megajoule per cubic meter | Megajoule per liter | Kilowatt-hour per cubic meter |
|---|---|---|---|
| 1 J/m³ | = 0.000001 MJ/m³ | = 1e-9 MJ/L | ≈ 2.777777778e-7 kWh/m³ |
| 10 J/m³ | = 0.00001 MJ/m³ | = 1e-8 MJ/L | ≈ 0.000002777777778 kWh/m³ |
| 100 J/m³ | = 0.0001 MJ/m³ | = 1e-7 MJ/L | ≈ 0.00002777777778 kWh/m³ |
| 1000 J/m³ | = 0.001 MJ/m³ | = 0.000001 MJ/L | ≈ 0.0002777777778 kWh/m³ |
Among the 8 fuel energy per volume units on this page, the smallest is the joule per cubic meter (J/m³) and the largest is the kilowatt-hour per liter (kWh/L).
More fuel energy per volume conversions
- BTU per cubic foot to Megajoule per cubic meterBTU/ft³ → MJ/m³
- Kilowatt-hour per cubic meter to Megajoule per cubic meterkWh/m³ → MJ/m³
- Megajoule per cubic meter to BTU per cubic footMJ/m³ → BTU/ft³
- Megajoule per liter to BTU per gallon (US)MJ/L → BTU/gal
- BTU per gallon (US) to Megajoule per literBTU/gal → MJ/L
- Megajoule per cubic meter to Kilowatt-hour per cubic meterMJ/m³ → kWh/m³
About fuel energy per volume units
Energy per volume is the energy contained in, or released by burning, one unit of volume. Its SI unit is the joule per cubic meter (J/m³). Gas heating values are usually given in MJ/m³ or BTU/ft³, and liquid fuels in MJ/L or BTU per gallon.
One MJ/L is exactly 1000 MJ/m³, and one kWh/m³ is exactly 3.6 MJ/m³. One BTU/ft³ is about 37.259 kJ/m³, and one BTU per US gallon is about 0.27872 MJ/m³. A volume of gas depends on temperature and pressure, so gas heating values are quoted at stated reference conditions.
Frequently asked questions
- How do I convert BTU/ft³ to MJ/m³?
- Multiply by about 0.0372589. Natural gas at about 1000 BTU/ft³ is about 37.3 MJ/m³.
- How do I convert MJ/m³ to kWh/m³?
- Divide by 3.6. For example, 38 MJ/m³ is about 10.56 kWh/m³.
- How many BTU per gallon is 1 MJ/L?
- About 3587.9 BTU per US gallon.
- How many megajoules per cubic meter are in one joule per cubic meter?
- One joule per cubic meter = 0.000001 MJ/m³ (megajoules per cubic meter).
- How many megajoules per liter are in one joule per cubic meter?
- One joule per cubic meter = 1e-9 MJ/L (megajoules per liter).
- How many kilowatt-hours per cubic meter are in one joule per cubic meter?
- One joule per cubic meter ≈ 2.777777778e-7 kWh/m³ (kilowatt-hours per cubic meter).