Therms to Watt-seconds Conversion

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

Results in Watt-seconds:
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1 therm = 105,505,585.262 Ws

How to Convert Therms to Watt-seconds

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

Since one therm is equal to 105,505,585.262 watt-seconds, you can use this simple formula to convert:

watt-seconds = therms × 105,505,585.262

The energy in watt-seconds is equal to the therms multiplied by 105,505,585.262.

For example, here's how to convert 5 therms to watt-seconds using the formula above.
5 therms = (5 × 105,505,585.262) = 527,527,926.31 Ws

Therms 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 100,000 BTU, which are equal to the amount of heat energy required to increase the temperature of one pound of water one degree Fahrenheit. Therms are often used by natural gas companies to measure the heat equivalent of gas used.

The therm 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]

Therm to Watt-second Conversion Table

Therm measurements converted to watt-seconds
Therms Watt-seconds
0.00000001 1.0551 Ws
0.00000002 2.1101 Ws
0.00000003 3.1652 Ws
0.00000004 4.2202 Ws
0.00000005 5.2753 Ws
0.00000006 6.3303 Ws
0.00000007 7.3854 Ws
0.00000008 8.4404 Ws
0.00000009 9.4955 Ws
0.000000001 0.105506 Ws
0.00000001 1.0551 Ws
0.0000001 10.55 Ws
0.000001 105.51 Ws
0.00001 1,055 Ws
0.0001 10,551 Ws
0.001 105,506 Ws
0.01 1,055,056 Ws
0.1 10,550,559 Ws
1 105,505,585 Ws


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

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