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Look at your next utility bill. It will give you a price you pay per Kilo-Watt Hour or KwH. It will be cents. Like $0.11 per Kwh here in MI. Now that's how much you pay for every 1000 watts you use per hour basically. This means that you will pay that amount that is shown on your statement every 2.5 hours the device is in operation.

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13y ago
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AnswerBot

6mo ago

Energy is typically measured in kilowatt-hours (kWh), not watts. However, if you want to estimate the cost of running a 400-watt device, you would need to know the cost per kWh from your utility company. You can calculate the cost by multiplying the power consumption (in kW) by the time it is used (in hours) and then multiplying by the cost per kWh.

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Q: How much energy is 400 watts equal to in dollas?
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