Although a kilowatt-hour (kWh) and a kilowatt (kW) are related units of measurement, they serve two really different purposes. Ultimately, expertise the difference in between kWh and kW can aid you far better monitor your electrical power bill. Through this guide, we’ll begin by looking at kWh vs. KW definitions, and then relocate on to just how they may show up on your power bill.

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What’s the Difference between kWh and also KW?

It’s straightforward to gain kilowatt (kW) and also kilowatt-hours (kWh) combined up when talking around energy consumption. The main difference in between kWh and also kW is in what they measure. To put it simply, a kilowatt is a measure up of power and also a kilowatt-hour is a measure of energy; strength is the price at which something uses energy, and energy is the volume to do work.


On your power bill, the kWh procedures the lot of power that one appliance or maker needs to operation for one hour. Let’s rest the interpretations down a little further:

The Kilowatt

A kilowatt is merely a measure of exactly how much strength an electric appliance consumes—it’s ­­1,000 watt to it is in exact. You deserve to quickly convert watts (W) to kilowatts (kW) by diving her wattage through 1,000:

1,000W 1,000 = 1 kW.

The Kilowatt-Hour

A kilowatt-hour measures the energy an appliance offers in kilowatts every hour. Because that example, if you clean her floors through a 1,000-watt vacuum cleaner for one hour, girlfriend consume 1 kWh of energy.

Your kilowatt-hour usage factors in how plenty of watts her appliances use and how frequently you usage them. As soon as you see kWh on your monthly power bill, it’s a measure of your electric appliances’ wattage and the lot of time you use them.

The difference in between kWh and also kW, and also what you check out on your bill, is that kW shows the rate of power you use, and kWh indicates the amount of power you use. Let’s go over a couple of examples the kW vs kWh in the context of low- and also high-power appliances to give you a much better idea of exactly how these 2 units affect each other:

Lower watts: If you are using a 100-watt device, such as a plasma TV, you would need to watch your favorite reflects for 10 hours before reaching 1 kWh. Higher watts: If you space running a 2,000-watt appliance, such together a apparel dryer, girlfriend only should power it because that 30 minute to with 1 kWh.

The strength you usage on a day-to-day basis can quickly add up to 1 kWh if friend are frequently using high-wattage appliances in her home. Save this in mind, as energy companies generally charge for power on a per-kWh basis.

How do You calculation kWh vs. KW?

Knowing the difference between kW and also kWh can give you powerful insights to assist monitor and manage your power consumption. To calculation the kWh of your appliance, calculation the amount of time you use it and also write down the appliance’s wattage (generally uncovered on the label). Remember that one kilowatt amounts to 1,000 watts, so nothing forget to division your wattage by 1,000 to convert to kilowatts.

Let’s usage a 1500W dishwasher you use for two hrs per work as an example for calculating kW and kWh ~ above a monthly basis:

Divide the wattage by 1,000 to calculation kW: 1500 watts 1,000 = 1.5 kWMultiply the kilowatts by the hours of daily use: 1.5 kW X 2 hours = 3 kWh per dayFind the total energy consumption for a month (30 days): 3 kWh X 30 days = 90 kWh every month

Now that we recognize the monthly kWh because that this device, let’s estimate the energy costs. Main point the kWh by your electrical power provider’s monthly power rates. For the sake of this example, fine say that $.07 every kWh:

90 kWh X $.07 every kWh = $6.30 every month

Make a list of appliances the you typically use and also do the very same calculations. You deserve to then start to balance your usage by examining which appliances call for the many power (kW) and also energy (kWh).

How do Companies measure up My Usage?

Utility companies measure your kWh v digital meters right exterior of your residence where the power line goes right into the property. While classic meters call for a utility business to pertained to your home, more recent digital meters have actually an electronic display screen that uses a high-frequency signal to send data to the energy companies.

Monitor Your electrical energy kWh

Now the you have a better understanding that kW matches kWh, and the various uses that electricity, you can take a closer look at her bill and begin to analyze your power consumption. For a more detailed understanding, take into consideration investing in a home energy monitor. Countless monitors easily accessible today room wireless and display your home’s energy intake in an app. Relying on which monitor you choose, you may even have the ability to turn appliances on and off as soon as you’re far from home using the app.

Lower Your power Costs


You have the right to lower your electrical power bill by being power conscious and following some straightforward energy-saving practices. Replace incandescent lightbulbs with energy-saving LEDs and also get in the habit of turning off the lamp whenever you leave a room. Unplug or turn off appliances if you will do it be far from house for a couple of days, and also resist the advice to leaving your devices on standby once you don’t require them.

Look into buying smart strength bars for components of your home with number of electronic tools (e.g. Entertainment center, office). You can collection a timer top top a smart strength bar so that it immediately turns off strength to the tools overnight. Some smart power bars also cut power to all gadgets once you rotate a specific device off. Because that example, you can program a smart power bar to reduced power to her sound system and television as shortly as you rotate your gaming console off.

What Appliances room Energy-Efficient?

So, once you’re all set to purchase that new washer or dryer, be certain to examine out the kW and kWh ratings and make some energy-saving adjustments, like washing v cold water and also hang-drying her clothes.

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As her Alberta energy firm and neighbour, we’re right here to market guidance on energy use and also home improvement. Native finding out about Alberta regulated electrical energy prices and also natural gas rates to learning how energy is measured, we’re here to help! call us anytime at 1.866.420.3174.