Watt-Hours to Watt-Seconds Converter

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


Result in Watt-Seconds:

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1 Wh = 3,600 Ws

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

How to Convert Watt-Hours to Watt-Seconds

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

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

watt-seconds = watt-hours × 3,600

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

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

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

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

1 Wh = 3,600 Ws

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

What Is a Watt-Hour?

The watt-hour is a measure of electrical energy equal to one watt of power over a one hour period.

Watt-hours are usually abbreviated as Wh, although the formally adopted expression is W·h. The abbreviation W h is also sometimes used. For example, 1 watt-hour can be written as 1 Wh, 1 W·h, or 1 W 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 watt-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.

Watt-Hour to Watt-Second Conversion Table

Table showing various watt-hour measurements converted to watt-seconds.
Watt-hours Watt-seconds
0.001 Wh 3.6 Ws
0.002 Wh 7.2 Ws
0.003 Wh 10.8 Ws
0.004 Wh 14.4 Ws
0.005 Wh 18 Ws
0.006 Wh 21.6 Ws
0.007 Wh 25.2 Ws
0.008 Wh 28.8 Ws
0.009 Wh 32.4 Ws
0.01 Wh 36 Ws
0.02 Wh 72 Ws
0.03 Wh 108 Ws
0.04 Wh 144 Ws
0.05 Wh 180 Ws
0.06 Wh 216 Ws
0.07 Wh 252 Ws
0.08 Wh 288 Ws
0.09 Wh 324 Ws
0.1 Wh 360 Ws
0.2 Wh 720 Ws
0.3 Wh 1,080 Ws
0.4 Wh 1,440 Ws
0.5 Wh 1,800 Ws
0.6 Wh 2,160 Ws
0.7 Wh 2,520 Ws
0.8 Wh 2,880 Ws
0.9 Wh 3,240 Ws
1 Wh 3,600 Ws


  1. Bureau International des Poids et Mesures, The International System of Units (SI), 9th edition, 2019, https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf

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