British Thermal Unit to Therm Converter
Energy · unit-converter
Convert British Thermal Unit 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: British Thermal Unit (btu)
To: Therm (therm)
About British Thermal Unit
The British thermal unit used here is the IT BTU: ≈ 1,055.056 J. It appears in HVAC, heating equipment, and US engineering data.
About Therm
A therm is a large US customary energy unit for natural gas (≈ 105.5 MJ here).
How to convert british thermal units to therm
1 british thermal unit is equal to 0.00001 therm when both are expressed in joule-equivalents:
1 btu = (1,055.05585262 J ÷ 105,505,585.262 J) therm = 0.00001 therm
Each british thermal unit is defined as 1,055.05585262 J and each therm as 105,505,585.262 J in this tool, so one btu equals 1,055.05585262 ÷ 105,505,585.262 therm = 0.00001 therm.
Let d(btu) be the numeric amount in British Thermal Unit (btu), and d(therm) the amount in Therm (therm). Then:
d(therm) = d(btu) × (1,055.05585262 / 105,505,585.262)
Equivalently, divide by how many btu fit into one therm (joules per therm divided by joules per btu):
d(therm) = d(btu) ÷ 100000
Or: therm = british thermal unit ÷ 100000
Examples
Example #1: Convert 1 btu to therm
1 btu = 1 btu × (1,055.05585262/105,505,585.262) therm = 0.00001 therm
1 btu = 1 btu ÷ 100000 = 0.00001 therm
Example #2: Convert 10 btu to therm
10 btu = 10 btu × (1,055.05585262/105,505,585.262) therm = 0.0001 therm
10 btu = 10 btu ÷ 100000 = 0.0001 therm
Summary
To convert British Thermal Unit to Therm, multiply the value in btu by the ratio of joules per btu divided by joules per therm. Equivalently: value_therm = value_btu × (1055.05585262 / 105505585.262). Numerically, 1 btu equals 0.00001 therm.
Relationship context
Both units are US / imperial engineering units (BTU, therm, ft·lb). Conversions use fixed joule factors, so results stay consistent with the definitions in this converter. The factor from British Thermal Unit to Therm is 1.000000e-5 (1 btu = 0.00001 therm).
Conversion tables
| British Thermal Unit (btu) | Therm (therm) |
|---|---|
| 0.1 | 0.000001 |
| 1 | 0.00001 |
| 2 | 0.00002 |
| 3 | 0.00003 |
| 4 | 0.00004 |
| 5 | 0.00005 |
| 6 | 0.00006 |
| 7 | 0.00007 |
| 8 | 0.00008 |
| 9 | 0.00009 |
| British Thermal Unit (btu) | Therm (therm) |
|---|---|
| 10 | 0.0001 |
| 20 | 0.0002 |
| 30 | 0.0003 |
| 40 | 0.0004 |
| 50 | 0.0005 |
| 60 | 0.0006 |
| 70 | 0.0007 |
| 80 | 0.0008 |
| 90 | 0.0009 |
| 100 | 0.001 |