Therm to Calorie Converter
Energy · unit-converter
Convert Therm to Calorie with fixed input and output units, a step-by-step formula line, and reference tables. Factors are joule-based; food energy uses thermochemical calories. The full Energy Converter also includes MMBtu, toe, thermal kWh, and MeV/GeV.
Calculator
From: Therm (therm)
To: Calorie (cal)
About Therm
A therm is a large US customary energy unit for natural gas (≈ 105.5 MJ here).
About Calorie
The small calorie (cal) is 4.184 J in this converter (thermochemical). Do not confuse with the dietary kilocalorie (kcal).
How to convert therm to calories
1 therm is equal to 2.52164401e+7 calorie when both are expressed in joule-equivalents:
1 therm = (105,505,585.262 J ÷ 4.184 J) cal = 2.52164401e+7 cal
Each therm is defined as 105,505,585.262 J and each calorie as 4.184 J in this tool, so one therm equals 105,505,585.262 ÷ 4.184 cal = 2.52164401e+7 cal.
Let d(therm) be the numeric amount in Therm (therm), and d(cal) the amount in Calorie (cal). Then:
d(cal) = d(therm) × (105,505,585.262 / 4.184)
Equivalently, divide by how many therm fit into one cal (joules per cal divided by joules per therm):
d(cal) = d(therm) ÷ 3.96566683e-8
Or: calorie = therm ÷ 3.96566683e-8
Examples
Example #1: Convert 1 therm to calorie
1 therm = 1 therm × (105,505,585.262/4.184) cal = 25216440.0722000003 cal
1 therm = 1 therm ÷ 3.96566683e-8 = 25216440.0722000003 cal
Example #2: Convert 10 therm to calorie
10 therm = 10 therm × (105,505,585.262/4.184) cal = 252164400.7220000029 cal
10 therm = 10 therm ÷ 3.96566683e-8 = 252164400.7220000029 cal
Summary
To convert Therm to Calorie, multiply the value in therm by the ratio of joules per therm divided by joules per cal. Equivalently: value_cal = value_therm × (105505585.262 / 4.184). Numerically, 1 therm equals 25216440.07217973 cal.
Relationship context
You are converting between US / imperial engineering units (BTU, therm, ft·lb) (Therm) and food / nutrition energy (calories) (Calories). All values are mapped through joules first. The numeric factor is 2.521644e+7.
Conversion tables
| Therm (therm) | Calorie (cal) |
|---|---|
| 0.1 | 2,521,644.00722 |
| 1 | 25,216,440.0722000003 |
| 2 | 50,432,880.1444000006 |
| 3 | 75,649,320.2164999992 |
| 4 | 100,865,760.2890000045 |
| 5 | 126,082,200.3610000014 |
| 6 | 151,298,640.4329999983 |
| 7 | 176,515,080.5049999952 |
| 8 | 201,731,520.5769999921 |
| 9 | 226,947,960.650000006 |
| Therm (therm) | Calorie (cal) |
|---|---|
| 10 | 252,164,400.7220000029 |
| 20 | 504,328,801.4440000057 |
| 30 | 756,493,202.1649999619 |
| 40 | 1,008,657,602.8899999857 |
| 50 | 1,260,822,003.6099998951 |
| 60 | 1,512,986,404.3299999237 |
| 70 | 1,765,150,805.0499999523 |
| 80 | 2,017,315,205.7699999809 |
| 90 | 2,269,479,606.5 |
| 100 | 2,521,644,007.2199997902 |