Quads to Watt-seconds Conversion

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

Results in Watt-seconds:
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1 quad = 1.0551E+18 Ws
Hint: use a scientific notation calculator to convert E notation to decimal

How to Convert Quads to Watt-seconds

To convert a quad measurement to a watt-second measurement, multiply the energy by the conversion ratio.

Since one quad is equal to 1.0551E+18 watt-seconds, you can use this simple formula to convert:

watt-seconds = quads × 1.0551E+18

The energy in watt-seconds is equal to the quads multiplied by 1.0551E+18.

For example, here's how to convert 5 quads to watt-seconds using the formula above.
5 quads = (5 × 1.0551E+18) = 5.2753E+18 Ws

How Many Watt-seconds are in a Quad?

There are 1.0551E+18 watt-seconds in a quad, which is why we use this value in the formula above.

1 quads = 1.0551E+18 Ws

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


One therm is a measure of heat energy equal to one quadrillion (1,000,000,000,000,000) BTU, which are equal to the amount of heat energy required to increase the temperature of one pound of water one degree Fahrenheit. Quads are usually used when talking about energy resources and consumption on a national or international scale.

The quad is a US customary unit of energy.


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.

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]

Quad to Watt-second Conversion Table

Quad measurements converted to watt-seconds
Quads Watt-seconds
0.000000000000000001 1.0551 Ws
0.000000000000000002 2.1101 Ws
0.000000000000000003 3.1652 Ws
0.000000000000000004 4.2202 Ws
0.000000000000000005 5.2753 Ws
0.000000000000000006 6.3303 Ws
0.000000000000000007 7.3854 Ws
0.000000000000000008 8.4404 Ws
0.000000000000000009 9.4955 Ws
0.0000000000000000001 0.105506 Ws
0.000000000000000001 1.0551 Ws
0.00000000000000001 10.55 Ws
0.0000000000000001 105.51 Ws
0.000000000000001 1,055 Ws
0.00000000000001 10,551 Ws
0.0000000000001 105,506 Ws
0.000000000001 1,055,056 Ws
0.00000000001 10,550,559 Ws
0.0000000001 105,505,585 Ws
0.000000001 1,055,055,853 Ws
0.00000001 10,550,558,526 Ws
0.0000001 105,505,585,262 Ws
0.000001 1,055,055,852,620 Ws
0.00001 10,550,558,526,200 Ws
0.0001 105,510,000,000,000 Ws
0.001 1,055,100,000,000,000 Ws
0.01 10,551,000,000,000,000 Ws
0.1 105,510,000,000,000,000 Ws
1 1,055,100,000,000,000,000 Ws


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