Load Calculator for Off-Grid & Backup Power Systems
Please enter info for each load or appliance that needs to be calculated, and we will get back to you shortly with your calculation. If needed, use the table below to find the typical wattages of common household appliances.
Find the wattage of your appliance
| Appliance | Wattage |
|---|---|
| Coffee Maker | 900-1200 |
| Clothes Washer | 350-500 |
| Clothes Dryer | 1800-5000 |
| Dishwasher | 1200-2400 (using the drying feature greatly increases energy consumption) |
| Dehumidifier | 785 |
| Electric Blanket | Single: 60 Double: 100 |
| Ceiling Fan | 65-175 |
| Window Fan | 55-250 |
| Furnace Fan | 750 |
| Whole House Fan | 240-750 |
| Hair Dryer | 1200-1875 |
| Heater (Portable) | 750-1500 |
| Clothes Iron | 1000-1800 |
| Microwave Oven | 750-1100 |
| Personal Computer - CPU | Awake: 150 Asleep: 30 or less |
| Personal Computer -Monitor | Awake: 150 Asleep: 30 or less |
| Personal Computer - Laptop | 50 |
| Radio (stereo) | 70-400 |
| Refrigerator (frost-free, 16 cubic feet) | 725 |
| Television (color) - 19" | 65-110 |
| Television (color) - 27" | 113 |
| Television (color) - 36" | 133 |
| Television (color) - 53"-61" Projection | 170 |
| Television (color) - Flat Screen | 120 |
| Toaster | 800-1400 |
| Toaster Oven | 1225 |
| VCR/DVD | 17-21/20-25 |
| Vacuum Cleaner | 1000-1440 |
| Water Heater (40 gallon) | 4500-5500 |
| Water Pump (deep well) | 250-1100 |
| Water Bed (with heater, no cover) | 120-30 |
Thinking about going off-grid solar?
Here are some additional links to help better understand off-grid solar.
