Kilowatt-Hours to Watt-Seconds Conversion (kWh to Ws)

Kilowatt-Hours to Watt-Seconds Converter

Enter the energy in kilowatt-hours below to convert it to watt-seconds.

Result in Watt-Seconds:

1 kWh = 3,600,000 Ws

How to Convert Kilowatt-Hours to Watt-Seconds

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

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

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

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

For example, here's how to convert 5 kilowatt-hours to watt-seconds using the formula above.

watt-seconds = (5 kWh × 3,600,000) = 18,000,000 Ws

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

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

1 kWh = 3,600,000 Ws

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

What Is a Kilowatt-Hour?

A kilowatt-hour is a measure of electrical energy equal to one kilowatt, or 1,000 watts, of power over a one hour period. Kilowatt-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.

Kilowatt-hours are usually abbreviated as kWh, although the formally adopted expression is kW·h. The abbreviation kW h is also sometimes used. For example, 1 kilowatt-hour can be written as 1 kWh, 1 kW·h, or 1 kW 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 kilowatt-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.

Kilowatt-Hour to Watt-Second Conversion Table

Table showing various kilowatt-hour measurements converted to watt-seconds.
Kilowatt-hours	Watt-seconds
0.000001 kWh	3.6 Ws
0.000002 kWh	7.2 Ws
0.000003 kWh	10.8 Ws
0.000004 kWh	14.4 Ws
0.000005 kWh	18 Ws
0.000006 kWh	21.6 Ws
0.000007 kWh	25.2 Ws
0.000008 kWh	28.8 Ws
0.000009 kWh	32.4 Ws
0.0000001 kWh	0.36 Ws
0.000001 kWh	3.6 Ws
0.00001 kWh	36 Ws
0.0001 kWh	360 Ws
0.001 kWh	3,600 Ws
0.01 kWh	36,000 Ws
0.1 kWh	360,000 Ws
1 kWh	3,600,000 Ws

Table showing various kilowatt-hour measurements converted to watt-seconds.

Kilowatt-hours

Watt-seconds

0.000001 kWh

3.6 Ws

0.000002 kWh

7.2 Ws

0.000003 kWh

10.8 Ws

0.000004 kWh

14.4 Ws

0.000005 kWh

18 Ws

0.000006 kWh

21.6 Ws

0.000007 kWh

25.2 Ws

0.000008 kWh

28.8 Ws

0.000009 kWh

32.4 Ws

0.0000001 kWh

0.36 Ws

0.000001 kWh

3.6 Ws

0.00001 kWh

36 Ws

0.0001 kWh

360 Ws

0.001 kWh

3,600 Ws

0.01 kWh

36,000 Ws

0.1 kWh

360,000 Ws

1 kWh

3,600,000 Ws

References

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