Kilocalorie to Therm Converter
Energy · unit-converter
Convert Kilocalorie to Therm 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: Kilocalorie (kcal)
To: Therm (therm)
About Kilocalorie
The kilocalorie (kcal) is 1,000 calories in the nutrition sense—often labeled “Calorie” on food packaging. Here 1 kcal = 4,184 J (thermochemical calorie definition used in this tool).
About Therm
A therm is a large US customary energy unit for natural gas (≈ 105.5 MJ here).
How to convert kilocalories to therm
1 kilocalorie is equal to 0.00003965666831 therm when both are expressed in joule-equivalents:
1 kcal = (4,184 J ÷ 105,505,585.262 J) therm = 0.00003965666831 therm
Each kilocalorie is defined as 4,184 J and each therm as 105,505,585.262 J in this tool, so one kcal equals 4,184 ÷ 105,505,585.262 therm = 0.00003965666831 therm.
Let d(kcal) be the numeric amount in Kilocalorie (kcal), and d(therm) the amount in Therm (therm). Then:
d(therm) = d(kcal) × (4,184 / 105,505,585.262)
Equivalently, divide by how many kcal fit into one therm (joules per therm divided by joules per kcal):
d(therm) = d(kcal) ÷ 25216.44007217973194
Or: therm = kilocalorie ÷ 25216.44007217973194
Examples
Example #1: Convert 1 kcal to therm
1 kcal = 1 kcal × (4,184/105,505,585.262) therm = 0.0000396567 therm
1 kcal = 1 kcal ÷ 25216.44007217973194 = 0.0000396567 therm
Example #2: Convert 10 kcal to therm
10 kcal = 10 kcal × (4,184/105,505,585.262) therm = 0.0003965667 therm
10 kcal = 10 kcal ÷ 25216.44007217973194 = 0.0003965667 therm
Summary
To convert Kilocalorie to Therm, multiply the value in kcal by the ratio of joules per kcal divided by joules per therm. Equivalently: value_therm = value_kcal × (4184 / 105505585.262). Numerically, 1 kcal equals 0.00003965666831390919 therm.
Relationship context
You are converting between food / nutrition energy (calories) (Kilocalories) and US / imperial engineering units (BTU, therm, ft·lb) (Therm). All values are mapped through joules first. The numeric factor is 3.965667e-5.
Conversion tables
| Kilocalorie (kcal) | Therm (therm) |
|---|---|
| 0.1 | 0.0000039657 |
| 1 | 0.0000396567 |
| 2 | 0.0000793133 |
| 3 | 0.00011897 |
| 4 | 0.0001586267 |
| 5 | 0.0001982833 |
| 6 | 0.00023794 |
| 7 | 0.0002775967 |
| 8 | 0.0003172533 |
| 9 | 0.00035691 |
| Kilocalorie (kcal) | Therm (therm) |
|---|---|
| 10 | 0.0003965667 |
| 20 | 0.0007931334 |
| 30 | 0.0011897 |
| 40 | 0.0015862667 |
| 50 | 0.0019828334 |
| 60 | 0.0023794001 |
| 70 | 0.0027759668 |
| 80 | 0.0031725335 |
| 90 | 0.0035691001 |
| 100 | 0.0039656668 |