Generator Size Calculator
Enter your running load and your biggest motor to find a suitable generator and the fuel it uses.
Pakistan Lands Tools | Generator Size Calculator
Estimate generated 17 Oct 2026 | https://property.candletrack.pro/public/buildcraft/tool/generator-size-calculator
Results
Enter your values and press Calculate. Results will appear here and update as you change inputs.
Have a qualified electrician confirm the size, changeover switch and earthing before you buy.
How this calculator works
- Running kVA = load × (1 + margin) ÷ power factor.
- The starting surge is allowed to be 1.5 times the generator rating for a few seconds.
Frequently asked questions
kW = kVA × power factor. Generators are sold in kVA; most homes have a power factor of about 0.8.
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