Convert g/kWh to gal/h online (from gram/kWh to gallon (US) per hour)

Enter the specific fuel consumption in g/kWh (grams per kilowatt hour):

Enter the engine power in kW:

Enter the density of the fuel in kg/m3 (references: diesel – 850 kg/m3, petrol – 710 kg/m3):

Fuel consumption gallon per hour (gal/h – gallon US) is:


How to calculate fuel consumption in gallon per hour, if the specific consumption in g / kWh is known?

You can calculate by the formula:

Q = N * q / (R * 3,78541), where

Q – (in gal / h) maximum theoretical fuel consumption in grams per 1 hour of engine operation at maximum power;

q – (in g / kWh) specific fuel consumption for power N;

N – (in kW) engine power;

R – (kg / m3) fuel density.

3,78541 liters = 1 US gallon (conversion factor from liters to gallons)