What is the Generator Size Calculator?
Motors in fridges, air conditioners and water pumps need 2–3 times their running power for a few seconds when they start. Tick the appliances you want to run together and set quantities – the calculator adds running watts, the largest starting surge, a 20% safety margin and recommends a generator size in kVA and kW.
How to use the Generator Size Calculator
- Set the quantity of each appliance you will run at the same time.
- Edit watts if your appliance label differs.
- Read the recommended generator size.
Tips
- Don’t start all big motors at once – stagger them.
- Inverter ACs have much lower starting surge.
- Use a changeover switch installed by an electrician.
This Generator Size Calculator is 100% free, needs no signup and runs privately in your browser – on phone, tablet or computer.
Last updated: · By NodifyTech