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Generator Sizing Calculator
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Common Household Appliance Wattage Chart (2025)
| Appliance | Running Watts | Starting Watts |
|---|---|---|
| Refrigerator/Freezer | 600-700 | 1,800-2,200 |
| Sump Pump (1/3 HP) | 800 | 1,300-1,800 |
| Well Pump (1/2 HP) | 1,000 | 2,000-3,000 |
| Furnace Fan Blower (1/2 HP) | 800 | 2,350 |
| Window AC (10,000 BTU) | 1,000-1,200 | 3,000-3,600 |
| Central AC (3 Ton) | 3,000-3,500 | 8,400-9,000 |
| Electric Water Heater | 4,000 | 4,000 |
| Clothes Washer | 1,000-1,150 | 2,000-2,250 |
| Electric Clothes Dryer | 5,000-5,400 | 6,000-6,500 |
| Microwave Oven (1,000W) | 1,000 | 1,000 |
| Smart Home Hub & Devices | 100-200 | 100-200 |
| EV Charger (Level 1) | 1,500-2,000 | 1,500-2,000 |
| LED TV (50"-65") | 80-150 | 80-150 |
| Wi-Fi Router & Internet | 10-20 | 10-20 |
| LED Lighting (10 fixtures) | 60-100 | 60-100 |
Note: These are average values for 2025 appliances. Your actual wattage may vary by brand, age, and efficiency rating.
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