Megawatt-Hours to Watt-Seconds Converter

Enter the energy in megawatt-hours below to get the value converted to watt-seconds.


Result in Watt-Seconds:

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1 MWh = 3,600,000,000 Ws

Do you want to convert watt-seconds to megawatt-hours?

How to Convert Megawatt-Hours to Watt-Seconds

To convert a measurement in megawatt-hours to a measurement in watt-seconds, multiply the energy by the following conversion ratio: 3,600,000,000 watt-seconds/megawatt-hour.

Since one megawatt-hour is equal to 3,600,000,000 watt-seconds, you can use this simple formula to convert:

watt-seconds = megawatt-hours × 3,600,000,000

The energy in watt-seconds is equal to the energy in megawatt-hours multiplied by 3,600,000,000.

For example, here's how to convert 5 megawatt-hours to watt-seconds using the formula above.
watt-seconds = (5 MWh × 3,600,000,000) = 18,000,000,000 Ws

How Many Watt-Seconds Are in a Megawatt-Hour?

There are 3,600,000,000 watt-seconds in a megawatt-hour, which is why we use this value in the formula above.

1 MWh = 3,600,000,000 Ws

Megawatt-hours and watt-seconds are both units used to measure energy. Keep reading to learn more about each unit of measure.

What Is a Megawatt-Hour?

A megawatt-hour is a measure of electrical energy equal to one megawatt, or 1,000,000 watts, of power over a one hour period. Megawatt-hours are a measure of electrical work performed over a period of time, and are often used as a way of measuring energy usage by electric companies.

Megawatt-hours are usually abbreviated as MWh, although the formally adopted expression is MW·h. The abbreviation MW h is also sometimes used. For example, 1 megawatt-hour can be written as 1 MWh, 1 MW·h, or 1 MW h.

In formal expressions, the centered dot (·) or space is used to separate units used to indicate multiplication in an expression and to avoid conflicting prefixes being misinterpreted as a unit symbol.[1]

Learn more about megawatt-hours.

What Is a Watt-Second?

The watt-second is a measure of electrical energy equal to one watt of power over a one second period. One watt-second is equal to 1/3,600 of a watt-hour or one joule.

Watt-seconds are usually abbreviated as Ws, although the formally adopted expression is W·s. The abbreviation W s is also sometimes used. For example, 1 watt-second can be written as 1 Ws, 1 W·s, or 1 W s.

Learn more about watt-seconds.

Megawatt-Hour to Watt-Second Conversion Table

Table showing various megawatt-hour measurements converted to watt-seconds.
Megawatt-hours Watt-seconds
0.000000001 MWh 3.6 Ws
0.000000002 MWh 7.2 Ws
0.000000003 MWh 10.8 Ws
0.000000004 MWh 14.4 Ws
0.000000005 MWh 18 Ws
0.000000006 MWh 21.6 Ws
0.000000007 MWh 25.2 Ws
0.000000008 MWh 28.8 Ws
0.000000009 MWh 32.4 Ws
0.0000000001 MWh 0.36 Ws
0.000000001 MWh 3.6 Ws
0.00000001 MWh 36 Ws
0.0000001 MWh 360 Ws
0.000001 MWh 3,600 Ws
0.00001 MWh 36,000 Ws
0.0001 MWh 360,000 Ws
0.001 MWh 3,600,000 Ws
0.01 MWh 36,000,000 Ws
0.1 MWh 360,000,000 Ws
1 MWh 3,600,000,000 Ws


  1. Bureau International des Poids et Mesures, The International System of Units (SI), 9th edition, 2019,

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