Find the Right
Generator Size in
30 Seconds
Add the appliances you plan to power and we'll estimate your power needs for home backup, RV, and light jobsite use.
Add Appliances & Quantities
Common Home Essentials
Add the appliances you want to keep running during an outage.
Your Selected Appliances
Only the appliances listed below are included in your calculation.
| Appliance | Running Watts |
Starting Watts |
Quantity | Running Total |
Starting Total |
Remove |
|---|---|---|---|---|---|---|
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Add appliances and tools
Starting watts include the extra power needed to start motors and compressors.
Wattage values are approximate planning estimates. Actual power demand varies by appliance model, motor condition, temperature, battery charging state, extension-cord length, and startup conditions. Check the appliance or tool label and owner's manual before use.
A calculator result is not a guarantee that every motor-driven tool will start under every condition.
What Customers Say
It was very easy to shop and buy, shipped out 2 or 3 business days after ordered, received tracking number easy to track by FedEx arrived 2 days later.
I wish that, it had come with small amount of oil, but no big deal, did put a little to much but really like that if spilled it doesn’t get to where it will smoke.
Then filled starting instructions for first time and on the first pull it started up. Let run a short time pretty quiet.
Will be using it this weekend at a 4th July festival so hopefully it will be quite enough to have conversation with customers.
Wish they had a cover to fit this.
Very nice unit
it was quite nice
I just love it very much
Frequently Asked Questions
The calculator adds the running watts of the devices you selected, then accounts for the largest applicable startup surge. It recommends the smallest current SIOKIUU model that meets those calculated requirements and the selected use conditions.
Running watts are the continuous power required while equipment operates. Starting watts are the brief total power needed when a motor or compressor starts. The calculator does not simply add every device's starting watts together.
Using a microwave, heater, kettle, air conditioner, or similar high-draw appliance one at a time can reduce the load required from the generator. Refrigerators, routers, CPAP devices, and other essential base loads remain included in the calculation.
Yes, when possible. Catalog values are planning estimates and actual demand varies by model. Use the running and starting wattage shown on the appliance label or in the manufacturer's documentation for a more accurate result.
Motor-driven tools can have large and unpredictable startup demand. Tools marked Check Nameplate require confirmed running and starting wattage, and Light Jobsite recommendations also require conservative running and startup headroom.
Select the RV air conditioner, refrigerator, converter, lights, and any other devices you expect to use. Confirm the air conditioner's label wattage and tell the calculator whether you need a direct TT-30R connection.
No. Gasoline generators must only be operated outdoors in a dry, well-ventilated area, away from windows, doors, vents, garages, and other enclosed spaces.