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Generator Size & Wattage Calculator

What Size Portable Generator Do You Need?

Portable generators are a reliable backup power source, whether you're using it to camp, power your construction site or keep your home running during a power outage. Since everyone's needs are different, this wattage calculator will help you determine the right generator size for you!

Sort by Type:
  Tool Running Wattage Starting Wattage
550 1375
1440 3600
600 1200
10 0
950 2400
113 0
100 0
25 0
1500 3000
3800 4950
3800 4950
2100 5250
3600 9000
1800 4500
1300 0
50 0
1300 0
240 0
1500 0
300 0
1200 3000
20 0
70 0
1100 1250
480 1200
1500 0
2100 0
150 0
500 0
700 1400
700 1400
1250 0
1600 1400
4700 4500
175 0
175 0
10 0
1200 0
400 0
75 0
60 0
75 0
1000 0
625 0
1800 4500
250 0
1800 4500
1000 0
300 0
500 0
1080 2700
550 1350
500 0
1500 0
450 0
1200 3000
1140 2850
1800 4500
850 0
1500 0
950 2400
3800 0
575 1440
1000 2100
3250 3950
40 0
Not sure what size Portable Generator you need? Check the items you need to power on the left to find the right sized Portable Generator for your needs.

Recommended Minimum
Wattage Requirements:

  • 0 Running Watts
  • 0 Starting Watts

*These are just estimates. Check your tool or appliance for exact wattage requirements.

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