Generator Size For Every Appliance
Detailed generator sizing guides for every common appliance, home size, and scenario. Find running watts, surge watts, and exact recommendations.
🔌
Appliances
Individual appliance generator requirements
What Size Generator Do I Need for a Refrigerator?
Running
150W
Recommended
2kW
What Size Generator for a Window Air Conditioner?
Running
1.2kW
Recommended
5kW
What Size Generator for a Portable Air Conditioner?
Running
1.1kW
Recommended
4kW
What Size Generator for Central Air Conditioning?
Running
3.5kW
Recommended
17kW
What Size Generator for a Sump Pump?
Running
800W
Recommended
5kW
What Size Generator for a Well Pump?
Running
750W
Recommended
5kW
What Size Generator for a Freezer?
Running
200W
Recommended
2kW
What Size Generator for a Space Heater?
Running
1.5kW
Recommended
4kW
What Size Generator for a Washing Machine?
Running
500W
Recommended
4kW
What Size Generator for a Welder?
Running
4.5kW
Recommended
8kW
What Size Generator for an Air Compressor?
Running
1.0kW
Recommended
7kW
🏠
By Home Size
Generator sizing by square footage
What Size Generator for a 1,000 Sq Ft House?
Running
2.5kW
Recommended
5kW
What Size Generator for a 1,500 Sq Ft House?
Running
3.5kW
Recommended
8kW
What Size Generator for a 2,000 Sq Ft House?
Running
4.5kW
Recommended
10kW
What Size Generator for a 2,500 Sq Ft House?
Running
6.0kW
Recommended
14kW
What Size Generator for a 3,000 Sq Ft House?
Running
8.0kW
Recommended
20kW
🚐
RV, Cabins & Off-Grid
Portable and off-grid scenarios
⚡
Combinations
Multi-appliance load calculations
Need a Custom Calculation?
Use our interactive calculator to get a precise generator size recommendation for your specific combination of appliances.