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Watt-hour to Megajoules Calculator

Watt-hour




Megajoules


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How to use this Watt-hour to Megajoules Converter 🤔

Follow these steps to convert given energy from the units of Watt-hour to the units of Megajoules.

  1. Enter the input Watt-hour value in the text field.
  2. The calculator converts the given Watt-hour into Megajoules in realtime ⌚ using the conversion formula, and displays under the Megajoules label. You do not need to click any button. If the input changes, Megajoules value is re-calculated, just like that.
  3. You may copy the resulting Megajoules value using the Copy button.
  4. You can also reset the input by clicking on Reset button present below the input field.

Formula

The formula to convert given energy from Watt-hour to Megajoules is:

Energy(Megajoules) = Energy(Watt-hour) × 3.6e-3

Calculation

Calculation will be done after you enter a valid input.

Examples

1

Consider that we have a light bulb that consumes 300 watt-hours (Wh) of energy over the 5 hours it was on.
Convert this energy consumption from watt-hours to Megajoules.

Answer

Given:

Energy in Watt-hour = 300 Wh

Converting Energy from Watt-hour to Megajoules...

The formula to convert from Watt-hour to Megajoules is:

Energy(Megajoules) = Energy(Watt-hour) × 3.6e-3

Substitute given Energy(Watt-hour) = 300 in the above formula.

Energy(Megajoules) = 300 × 3.6e-3

Energy(Megajoules) = 1.08

Therefore, 300 Wh is equal to 1.08 MJ.

2

Consider that a rechargeable battery stores 500 watt-hours (Wh) of energy.
Convert this stored energy from watt-hours to Megajoules.

Answer

Given:

Energy in Watt-hour = 500 Wh

Converting Energy from Watt-hour to Megajoules...

The formula to convert from Watt-hour to Megajoules is:

Energy(Megajoules) = Energy(Watt-hour) × 3.6e-3

Substitute given Energy(Watt-hour) = 500 in the above formula.

Energy(Megajoules) = 500 × 3.6e-3

Energy(Megajoules) = 1.8

Therefore, 500 Wh is equal to 1.8 MJ.

Watt-hour to Megajoules Conversion Table

The following table gives some of the most used conversions from Watt-hour to Megajoules.

Watt-hour (Wh)Megajoules (MJ)
0.01 Wh0.000036 MJ
0.1 Wh0.00036 MJ
1 Wh0.0036 MJ
2 Wh0.0072 MJ
3 Wh0.0108 MJ
4 Wh0.0144 MJ
5 Wh0.018 MJ
6 Wh0.0216 MJ
7 Wh0.0252 MJ
8 Wh0.0288 MJ
9 Wh0.0324 MJ
10 Wh0.036 MJ
20 Wh0.072 MJ
50 Wh0.18 MJ
100 Wh0.36 MJ
1000 Wh3.6 MJ

Watt-hour

A Watt-hour (Wh) is a unit of energy that measures the amount of electrical energy consumed or generated over time. One Watt-hour is equivalent to one watt of power used or produced for one hour. This unit is commonly used to quantify energy usage in households, industries, and various devices. For instance, a 100-watt light bulb running for 10 hours consumes 1000 watt-hours, or 1 kilowatt-hour (kWh). Watt-hours are essential for understanding energy consumption, billing in electric utilities, and managing energy efficiency.

Megajoules

A Megajoule (MJ) is a unit of energy equal to 1,000,000 joules. It is commonly used to measure large quantities of energy in various scientific, engineering, and industrial contexts. One megajoule represents the amount of energy required to apply a force of one newton over a distance of one million meters, or the energy transferred when one megawatt of power is applied for one second. Megajoules are often used to quantify the energy content of fuels, the work done by large machines, and the energy used or produced in industrial processes, providing a standard measure for comparing significant energy transfers and consumption.

Frequently Asked Questions (FAQs)

1. What is the formula for converting Watt-hour to Megajoules in Energy?

2. Is this tool free or paid?

3. How do I convert Energy from Watt-hour to Megajoules?