Generator Size Calculator
Calculate generator wattage needed based on appliances. Accounts for starting watts on motor loads.
Use the Generator Size Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.
Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.
You might also need
Solar Panel Savings Calculator
Estimate solar panel system cost, payback period, and 25-year savings with federal tax credit and state incentives.
Electricity Bill Calculator
Calculate your monthly electricity bill by adding appliances and their usage. Find your biggest energy consumers.
Carbon Footprint Calculator
Estimate your annual carbon footprint from driving, electricity, flights, and diet. Compare to the US average.