Work out lpg consumption instantly with clear inputs, formula shown and shareable results.
Actual gas consumption is the burner rating times duty cycle times hours, converted to kilograms at 13.8 kWh per kilogram. Duty cycle is what people miss — a hob rarely runs every burner at full, so a nominal 11 kW might average only 4 kW.
LPG consumption
kg per day = rating x duty cycle x hours / 13.8 kWh per kg
Compare metered or weighed consumption over a week with the nameplate rating. For a domestic hob it is typically 20-40%.
Per kilowatt-hour usually yes, but electric induction hobs are far more efficient at delivering heat into the pan, which narrows the gap considerably.