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Varies dependent on brand and model. For a specific one, go to the website for the manufacturer.

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Examine your television set; somewhere at the back, you should see how much watts it uses. If it doesn't, look for volts and ampères, and multiply those to get watts. A k…ilowatt is 1000 watts; a device that uses 1000 watts will use 1 kWh per hour; one that uses 100 watts will use 0.1 kWh per hour, etc. (MORE)

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Check the power rating of the TV, and multiply by how many hours you used it for. Say if it uses 180W and you have it on for 4 hours, you will have used 180W * 4 = 720 watt-ho…urs which equals 0.72 kWh. This won't be exact, the TV will use different amounts of power depending on what is displayed on it, how bright the light it is emitting, how loud the speakers etc, but this should give a pretty good estimate. (MORE)

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The units are not interchangeable: a kilowatt is a unit of power, and a kilowatt-hour (one kilowatt applied for one hour) is a unit of energy. Example: A 100 watt bulb is,… at any given time, using 0.1 kilowatts of energy. Using a 100 watt light bulb for one hour consumes 0.1 kilowatt-hours of electricity. Energy is only used by applying power for a finite period of time. (MORE)

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That's like asking "How many miles per hour are in one mile ?" Kilowatts is a unit of power ... the rate of using energy. Kilowatt-hours is a unit of energy. You can't con…vert between units of power and units of energy. If you divide 1 kWh / 1 kW, you get an hour, which is a unit of time. ====== 1 KWh = 3,600,000 Watts-seconds = 3600 KW-seconds = 3.6 MW-seconds. Note: KWs=KiloWatts. Rationale: Joule = the SI unit of work or energy, equal to the work done by a force of one newton when its point of application moves through a distance of one meter in the direction of the force: equivalent to ... one watt*second. Watt = the derived SI unit of power, equivalent to one joule per second and equal to the power in a circuit in which a current of one ampere flows across a potential difference of one volt. KiloWatt = a unit of power equal to 1000 Joules per second. Power = In physics, power is the rate at which energy is transferred, used, or transformed. The unit of power is the joule per second (J/s). In electricity the basic unit of power is the Watt. Therefore: 1 Joule per second = 1 Watt 1 kiloWatt = 1000 Watts 1 kiloWatt hour = 1000 Watt-hours = 1000 Watts for 3600 seconds = 1000 Watts * 3600 seconds = 3,600,000 Watt-seconds = 3600 kiloWatt-seconds Electrical Power is simply expressed Watts or multiples of Watts (Watt-hours, KWhs, MWhrs, etc). Electrical energy is expressed in Watts*time. Below are some examples: 1 Watt for one second = 1 Watt-second or 1 Watt*second, etc 1 kiloWatt for one second = 1000 Watt-seconds, etc 1 Watt*hour = 1 Watt for 1 hour = 1 Watt * 3600 seconds = 3600 Watt*seconds. 1 kiloWatt*hour = 1000 Watt*hours 1 megaWatt*hour = 1 million watt*hours (MORE)

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Depends on the power - the wattage of the lamp, and how long it is lit. You take the power - the wattage of the lamp, and multiply with how long it is lit. A 100 W b…ulb - 0.1 kW - will use 0.1 kWh in one hour. Or 1 kWh in 10 hours. Or 10 kWh in 100 hours. (MORE)

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In Science

It depends what the power rating of the appliance is. A 500 watt microwave will use half a kilowatt if it's run for an hour on full power. A 750 watt unit will use 3/4 of a un…it in the same time period. (MORE)

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In Science

Watts does not have a time component to it; so you should have asked, "How many kilowatt-hours does an oven use per hour?' For example, if the oven uses 1600 watts, then in on…e hour, it would use 1600 watt-hours, or 1.6 kilowatt-hours. (MORE)

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Kilowatts and horse power are both measures of power and they must be multiplied by time to get units of energy. 1 HP is 746 watts, so a 3-HP pump works at 3 x 746… watts, and probably uses about 3 kilowatts of electrical power input. In one hour that is 3 kilowatt-hours, also known as 3 Units. Obviously in 6 hours it would use 18 kWh etc. etc. (MORE)

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Kettles are usually rated as 3KWh. Meaning - if it is left on for an hour - it will use three units of electricity.