F-Gas GWP and tCO2e calculator
F-Gas GWP & tCO₂e Calculator
Refrigerant → charge (kg) → GWP → tonnes CO₂e → the legal F-Gas leak-check frequency, with your next check date.
System 1
GWP (AR4)
2,088
Charge
5 kg
CO₂ equivalent
10.44 t
Legal leak-check frequency
Every 12 months
Band: 5 to under 50 tCO2e
- • Records must be kept for 5 years (charge, checks, recovery, engineer details).
- • AR5 GWP (reporting reference only): 1,924 — legal thresholds use AR4.
Based on the GB F-Gas Regulation (retained EU 517/2014) Articles 4 & 5 using AR4 GWP values. Hermetically sealed systems below 10 tCO₂e and labelled as such are exempt from leak checking. Indicative guidance only — confirm against current legislation.