# Kilowatt hour conversion calculator

As an electricity measurement unit, the electricity providers use the kilowatt-hour to measure the electricity used by the households and generate the electricity bills.

To know how to reduce electricity usage and the electricity bill, you must learn what a Kilowatt hour is.

## What is a Kilowatt hour

A Kilowatt hour (kWh) is a unit used to measure power.

A Watt (W) is the amount of energy our household appliances and devices need to function, the rate at which they consume energy.

One Kilowatt is equivalent to 1000 watts.

1kW = 1000 W

And one Kilowatt-hour is the amount of energy that a 1000 watts household appliance or device would use to run continuously for one hour.

1 kWh = 1 kW x 1 hour

The following video explains what a Kilowatt hour is and how it relates to other power measurement units and our household appliances and devices. Do not forget to enable the video captions, as the video caption contains the concepts and explanations.

## Conversion calculator to convert Kilowatt hours to other units

### Watt (W) to Kilowatt hour (kWh) conversion calculator

To convert Watts (W) to Kilowatt hours (kWh), you need to divide the number of Watts by 1000 and multiply the result by the number of hours.

kWh = (W/1000) x Hours

kWh is the measurement unit the electricity suppliers use to calculate our electricity bills.

Also, most big appliances, like dishwashers or washing machines, rate their consumption in kWh.

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For example, if a device uses 300 Watts and has been in use for 5 hours:

(300/1000) = 0.3 kW

0.3 kW x 5 hours = 1.5 kWh

### Kilowatt (kW) to Kilowatt hour (kWh) conversion calculator

To convert Kilowatts (kW) to Kilowatt hours (kWh), you need to multiply the number of Kilowatts by the number of hours.

kWh = kW x Hours

kWh is the measurement unit the electricity suppliers use to calculate our electricity bills.

Also, most big appliances, like dishwashers or washing machines, rate their consumption in kWh.

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For example, to convert 25 Kilowatts to Megawatts:

25 kW / 1000 = 0.025 MW

A few other examples from our ‘Electricity usage and electricity cost calculators‘ page that may be of your interest:

## Kilowatt hour electricity usage monitor

If you want to know the exact electricity usage of an appliance or device, your best option is to use a plug-in power meter to measure the electricity consumption.

Clicking on the image below will redirect you to the Amazon page, where you can look at the specifications of the power meter we use for our measurements.

Our house appliances and devices like the washing machine, the dishwasher, the TV, or the printer are plugged into a wall socket.

So, with a power consumption meter, we can determine how much electricity our appliances or devices are using, and, more importantly, we can measure the electricity usage over time.

If you want to find out how you can use a plug-in power meter to measure your electricity usage and electricity cost, have a look at this YouTube video.

## Kilowatt hour FAQ

### How to calculate the cost of a kWh

You don’t need to calculate the cost of a kWh.

When you signed a contract with your electricity provider, the cost per kWh was agreed upon.

For example, the user from the picture below agreed to pay 31,90 cents per kWh, and the electricity company agreed to maintain that tariff, the cost per kWh, for 2 years.

### How to calculate kWh usage per month

Nowadays, most electricity companies have a website where users can log in and access electricity usage data.

For example, the user from the picture below used 2456 kWh in a year which is 81.86 kWh per month.

### How to calculate kWh per day

The simplest way to calculate the electricity usage in kWh per day is to look at the electricity meter, record the value, and record it again the next day.

## Kilowatt hour and energy conservation

Energy conservation can be defined as the decision and the act of using less energy

Energy conservation both benefit you and the environment

The act of saving and conserving electricity does benefit you because you will be paying less for your energy bills.

And it also benefits the environment because conserving electricity prevents unnecessary waste of natural resources.

At the individual level, it may not look worth trying to save a few watts here or there.

Still, every little one counts, and if hundreds or thousands of us save a little every time, it will make an essential contribution towards conserving our natural resources.

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For example, if 9000 households would manage to save as little as 10 Watts per day (0,01 kWh) that would add to 32850 Kilowatt hours (kWh) saved per year.

9000 households x 0,01 kWh per day x 365 days per year

32,850 kWh saved per year

That is a considerable amount of electricity, but let’s add additional perspectives for clarity:

> Assuming an average cost of 0,18 euros (or dollars, pounds, or any other currency) per kWh, we would collectively save nearly 6000 euros per year.

> To produce 32,850 kWh of electricity, it is necessary to use around 17 metric tons of coal or 56 barrels of residual fuel oil.

In any case, small energy savings do count when looking into the bigger picture.

### Proven ways to save electricity at home

If you are looking for ideas to save electricity at home, watch this YouTube video, where we show some useful tips to reduce electricity usage at home and decrease the electricity bill.

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