Knowing your AC power needs is key for selecting the right inverter. WattBuild's calculator lets you list the devices you want to power and then tells you the key stats you need to know, as well as showing which products on the market are compatible.
To get started
- Use the Add Device section to begin adding your devices. The calculator will compute the most demanding scenario for your needs, so make sure the devices you choose will all be running at the same time to get the best estimate.
- Once added, some devices will let you choose different sizes, for example a small, medium, or large refrigerator, so be sure to choose the one that best matches.
- Once you've finished adding devices, look at the compatible device list to see which inverters meet your needs.
Blender
Chest Freezer
Coffee Machine
Dishwasher
Electric Grill
Fridge
Induction Stovetop
Microwave
Pressure Cooker
Resistance Stovetop
Toaster
Central AC
Electric Blanket
Fan
Gas Water Heater
Lamp
Space Heater
Sump Pump
Window AC
Desktop
Game Console
Laptop
Phone
TV
Wifi
CPAP
EV Charger
Air Pump
Custom Device
What size inverter do you need? Add devices from the categories above, customize quantity and model details in the next step.
No devices selected yet.
Start by choosing items from the library on the left.
You can adjust model and quantity, and add different models of the same type (e.g., large and small refrigerators).
