Calorie to Therm Converter

1 cal = 0.0000000397 thm

1 cal = 0.0000000397 thm

Calorie to Therm Table

Calorie (cal)Therm (thm)
0.010.0000000004
0.10.000000004
10.0000000397
20.0000000793
50.0000001983
100.0000003966
200.0000007932
500.0000019829
1000.0000039659
5000.0000198294
10000.0000396588

How to Convert Calorie to Therm

To convert Calorie (cal) to Therm (thm), use the formula: 1 cal = 0.0000000397 thm.

For example, to convert 5 cal to thm: 5 cal = 0.0000001983 thm. Similarly, 10 cal = 0.0000003966 thm, 25 cal = 0.0000009915 thm, and 100 cal = 0.0000039659 thm.

To convert in the other direction, 1 thm = 25,215,105.16 cal. Simply enter your value in either field above for instant bi-directional conversion.

What is a Calorie?

A calorie (cal) is the energy needed to raise 1 gram of water by 1°C. Small calories are used in chemistry and physics.

What is a Therm?

A therm equals 100,000 BTUs. Therms are used for natural gas billing in the US.

Common Calorie to Therm Conversions

Here are some frequently looked-up conversions between Calorie and Therm:

  • 1 cal = 0.0000000397 thm
  • 5 cal = 0.0000001983 thm
  • 10 cal = 0.0000003966 thm
  • 25 cal = 0.0000009915 thm
  • 100 cal = 0.0000039659 thm

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