Kilocalories to Therms Conversion

Enter the energy in kilocalories below to get the value converted to therms.

Results in Therms:
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1 kcal = 3.9657E-5 therms
Hint: use a scientific notation calculator to convert E notation to decimal

How to Convert Kilocalories to Therms

To convert a kilocalorie measurement to a therm measurement, multiply the energy by the conversion ratio. One kilocalorie is equal to 3.9657E-5 therms, so use this simple formula to convert:

therms = kilocalories × 3.9657E-5

The energy in therms is equal to the kilocalories multiplied by 3.9657E-5.

For example, here's how to convert 50,000 kilocalories to therms using the formula above.
50,000 kcal = (50,000 × 3.9657E-5) = 1.982833 therms

Kilocalories and therms are both units used to measure energy. Keep reading to learn more about each unit of measure.


One kilocalorie, is equal to the heat needed to raise the temperature of one kilogram of water from 14.5 to 15.5 degrees Celsius.

Kilocalories can be abbreviated as kcal; for example, 1 kilocalorie can be written as 1 kcal.

When being used to measure nutrition or metabolic processes, the large calorie is used, which is equal to one kilocalorie.


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.

Kilocalorie to Therm Conversion Table

Kilocalorie measurements converted to therms
Kilocalories Therms
1 kcal 0.000039657
2 kcal 0.000079313
3 kcal 0.000119
4 kcal 0.000159
5 kcal 0.000198
6 kcal 0.000238
7 kcal 0.000278
8 kcal 0.000317
9 kcal 0.000357
10 kcal 0.000397
100 kcal 0.003966
1,000 kcal 0.039657
10,000 kcal 0.396567
100,000 kcal 3.9657