Calories to Therms Converter

1 calorie (cal) equals 3.9666137 × 10-8 therms (thm).

Quick answer

  • 1 calorie = 3.9666137 × 10-8 therms
  • 1 therm = 25,210,420.65 calories
  • Formula: thm = cal × 3.9666137 × 10-8

1 calorie = 3.9666137 × 10-8 therms

How to convert calories to therms

thm = cal × 3.9666137 × 10-8

To convert calories to therms, multiply the number of calories by 3.9666137 × 10-8.

Example: 18 cal to thm

  1. Start with the value in calories: 18 cal.
  2. Multiply by 3.9666137 × 10-8: 18 × 3.9666137 × 10-8 = 7.1399047 × 10-7.
  3. Result: 18 calories = 7.1399047 × 10-7 therms.

Going the other way, 1 therm = 25,210,420.6501 calories, so to convert therms back to calories you divide by the same number. See therms to calories.

Calories to therms conversion table

Calories (cal)Therms (thm)
0.25 cal 9.9165343 × 10-9 thm
0.5 cal 1.9833069 × 10-8 thm
0.75 cal 2.9749603 × 10-8 thm
1 cal 3.9666137 × 10-8 thm
1.5 cal 5.9499206 × 10-8 thm
2 cal 7.9332274 × 10-8 thm
2.5 cal 9.9165343 × 10-8 thm
3 cal 1.1899841 × 10-7 thm
4 cal 1.5866455 × 10-7 thm
5 cal 1.9833069 × 10-7 thm
6 cal 2.3799682 × 10-7 thm
7 cal 2.7766296 × 10-7 thm
8 cal 3.173291 × 10-7 thm
9 cal 3.5699523 × 10-7 thm
10 cal 3.9666137 × 10-7 thm
11 cal 4.3632751 × 10-7 thm
12 cal 4.7599364 × 10-7 thm
13 cal 5.1565978 × 10-7 thm
14 cal 5.5532592 × 10-7 thm
15 cal 5.9499206 × 10-7 thm
16 cal 6.3465819 × 10-7 thm
17 cal 6.7432433 × 10-7 thm
18 cal 7.1399047 × 10-7 thm
19 cal 7.536566 × 10-7 thm
20 cal 7.9332274 × 10-7 thm
21 cal 8.3298888 × 10-7 thm
22 cal 8.7265501 × 10-7 thm
23 cal 9.1232115 × 10-7 thm
24 cal 9.5198729 × 10-7 thm
25 cal 9.9165343 × 10-7 thm
26 cal 0.00000103132 thm
27 cal 0.000001070986 thm
28 cal 0.000001110652 thm
29 cal 0.000001150318 thm
30 cal 0.000001189984 thm
31 cal 0.00000122965 thm
32 cal 0.000001269316 thm
33 cal 0.000001308983 thm
34 cal 0.000001348649 thm
35 cal 0.000001388315 thm

More cal to thm values

What is a calorie?

The calorie (small calorie) is the energy needed to raise the temperature of one gram of water by about one degree Celsius.

More about calories →

What is a therm?

The therm is 100,000 BTU, about 105.5 MJ or 29.3 kWh.

More about therms →

Convert calories to other units

Convert other units to therms

Frequently asked questions

How many therms are in a calorie?

One calorie is 3.9666137e-8 therms.

How many calories are in a therm?

One therm is 25,210,420.65 calories.

What is the formula to convert calories to therms?

thm = cal × 3.9666137 × 10^-8.