Genset Sizing Calculator

Guide to Units:
  • HP = Horsepower
  • kW = Kilo Watts
  • kVA = Kilo Volt Amps
Power Consumption Calculator
Appliance Rated Watts Rated kVA Rated kVA
(Appliances) (To Operate Appliance) (To Start Appliance)
Lights 25-200 0.03-0.25 0.03-0.25
Exhaust Fan 40 0.05 0.2
Radio 60 0.08 0.08
Sewing Machine 60 0.08 0.32
Television 75-200 0.09-0.25 0.09-0.25
Can Opener 100 0.13 0.52
Air Conditioner (Reverse cycle) 200-2500 0.25-3.13 1-12.5
Air Conditioner (Evaporative model) 275-1000 0.34-1.25 1.36-5
Domestic Water Pumps 275-1000 0.34-1.25 1.36-5
Refrigerator (home) 300 0.38 1.52
Floor Polisher 350 0.44 1.76
Deep Freezer 500 0.63 2.52
Food Processor 500 0.63 2.52
Washing Machine 500-3000 0.63-3.75 2.52-15
Coffee Percolator 550 0.69 0.69
Disposal Unit 650 0.81 3.24
Iron 800-1500 1-1.88 1-1.88
Radiator 1000-2500 1.25-3.13 115-3.13
Dishwasher 1000-3000 1.25-3.75 1.25-3.75
Frypan 1400 1.75 1.75
Hair Dryer 1500 1.88 1.88
Microwave 1500 1.88 1.88
Kettle or jug 1600-3000 2-3.75 2-3.75
Clothes Dryer 2400 3 3
Hotwater Service 2500-3000 3.13-3.75 3.13-3.75
Oven 4000-8000 5-10 5-10
Space Heater 2000 2.5 2.5
Welder 140A 5000 6.25 8 min