Heat Converters
Fuel Efficiency (Volume) Converter
Convert volumetric energy density between J/m³, BTU/ft³ and therm-based units — used for natural gas and heating oil specifications.
FUEL EFFICIENCY (VOLUME) CONVERTER — INSTANT RESULT
All supported units — fuel efficiency (volume)
| Unit | Symbol | To joule/cubic meter (J/m³) | From joule/cubic meter (J/m³) |
|---|---|---|---|
| Joule/cubic meter | J/m³ | 1 J/m³ = 1 J/m³ | 1 J/m³ = 1 J/m³ |
| Kilojoule/cubic meter | kJ/m³ | 1 kJ/m³ = 1,000 J/m³ | 1 J/m³ = 0.001 kJ/m³ |
| Megajoule/cubic meter | MJ/m³ | 1 MJ/m³ = 1,000,000 J/m³ | 1 J/m³ = 1e-06 MJ/m³ |
| Joule/liter | J/L | 1 J/L = 1,000 J/m³ | 1 J/m³ = 0.001 J/L |
| BTU/cubic foot | BTU/ft³ | 1 BTU/ft³ = 37,258.94579 J/m³ | 1 J/m³ = 2.6839192e-05 BTU/ft³ |
| Kilocalorie/cubic meter | kcal/m³ | 1 kcal/m³ = 4,184 J/m³ | 1 J/m³ = 0.00023900574 kcal/m³ |
| Therm/cubic foot | thm/ft³ | 1 thm/ft³ = 3,725,894,579 J/m³ | 1 J/m³ = 2.68392e-10 thm/ft³ |
| Calorie/cubic centimeter | cal/cm³ | 1 cal/cm³ = 4,184,000 J/m³ | 1 J/m³ = 2.3900574e-07 cal/cm³ |
Popular fuel efficiency (volume) conversions
Frequently asked questions
What units does this fuel efficiency (volume) converter support?
It supports 8 units: Joule/cubic meter (J/m³), Kilojoule/cubic meter (kJ/m³), Megajoule/cubic meter (MJ/m³), Joule/liter (J/L), BTU/cubic foot (BTU/ft³), Kilocalorie/cubic meter (kcal/m³), Therm/cubic foot (thm/ft³), Calorie/cubic centimeter (cal/cm³).
What is the base unit of fuel efficiency (volume)?
The SI reference unit is the joule/cubic meter (J/m³). Every conversion is computed by converting the input to the base unit, then from the base unit to the target unit, so chained precision is preserved.
Is this converter accurate?
Yes. Conversion factors use exact legal definitions where they exist (for example 1 in = 25.4 mm exactly) and CODATA/ISO constants otherwise. Results are shown to up to 10 significant figures.