propane
liquid gasDESNZ 'Propane'. EIA US cross-check: 5.75 kg CO2/gal, 91,452 Btu/gal, 62.88 kg CO2/MMBtu (2022 vintage) — never averaged with DESNZ.
Density
514.933 kg/m³
at liquid phase (pressurised)
Heating values
LHV/NCV
HHV/GCV
Emission factors
| Metric | Value | Scope | Region / year | Source |
|---|---|---|---|---|
| CO2 | 1.5414 kg co2 per l | direct combustion | UK · 2025 | |
| CO2e | 1.54358 kg co2e per l | direct combustion | UK · 2025 |
CO₂ ≠ CO₂e — separate metrics, never converted into one another. Why? →
Worked example
Open in converter →Converting
1 L · propane
Energy
Same energy expressed in other units.
23.89 MJ
source-based
6.637 kWh
source-based
0.02389 GJ
source-based
22,650 BTU
source-based
25.95 MJ
source-based
7.209 kWh
source-based
0.02595 GJ
source-based
24,600 BTU
source-based
Mass
0.5149 kg
source-based
Volume
1,000 mL
exact
1 L
exact
0.001 m³
exact
0.264172 US gal
exact
0.219969 imp gal
exact
0.00628981 bbl
exact
Emissions
CO₂ and CO₂e are separate — never derived from each other.
~1.54 kg CO2
region + year
~1.54 kg CO2e
region + year
Energy density
Energy per unit of mass or volume.
46.4 MJ/kg
source-based
6.637 kWh/L
source-based
Assumptions
- density: assumed propane density 514.933 kg/m³ at liquid phase (pressurised)
- heating value basis: energy on LHV/NCV basis, 6.637 kWh/L
- heating value basis: energy on HHV/GCV basis, 7.209 kWh/L
Sources
Follow each source back to its primary document — that traceability is the point. How conversions work →