Convert HCFC-21 (CHCl2F) to CO₂e
1 kg=160kg CO₂e (AR6, 100-year)
1 kg × 160 = 160 kg CO₂e (GWP-100, IPCC AR6)
Global warming potential of HCFC-21
| Assessment report | GWP, 100-year | Source page |
|---|---|---|
| IPCC AR6 | 160 | 5 |
| IPCC AR5 | 148 | 5 |
| IPCC AR4 | 151 | 5 |
To convert a mass of HCFC-21 to CO₂ equivalent, multiply it by its global warming potential (GWP). For example, 10 kg × 160 = 1,600 kg CO₂e using the AR6 value.
The GHG Protocol's table states that "the use of the latest values (AR6) is recommended", and notes that AR4 and AR5 values are sometimes used for inventory and reporting purposes. Use the set your reporting framework asks for and keep it the same across years.
The UK government conversion factors (DESNZ 2026) give 148 kg CO₂e per kg for this gas (basis: AR5; AR6 where no AR5 value exists (DESNZ 2026 methodology, Table 1 note 5)).
Group: Hydrochlorofluorocarbon (includes unsaturated species).
Calculate leaks and releases
For refrigerant top-ups and leaks with the source row shown and saved, use the refrigerant leakage calculator.
Related gases
Source
- Global Warming Potential Values (August 2024), GHG Protocol (WRI/WBCSD), compiling IPCC AR4, AR5 and AR6 values. Column "GWP values for 100-year time horizon"
- UK Government GHG Conversion Factors for Company Reporting 2026 (flat file). File SHA-256 a9a455ab396dae226d510c7be6233748416d490c41a5d20f3dc7a0c45feecd5e