Feet-Pound to Therm Converter
Energy · unit-converter
Convert Feet-Pound 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: Feet-Pound (ftlb)
To: Therm (therm)
About Feet-Pound
The feet-pound is a mechanical work unit common in US torque and ballistics contexts.
About Therm
A therm is a large US customary energy unit for natural gas (≈ 105.5 MJ here).
How to convert feet-pounds to therm
1 feet-pound is equal to 1.28506746e-8 therm when both are expressed in joule-equivalents:
1 ftlb = (1.3558179483314003 J ÷ 105,505,585.262 J) therm = 1.28506746e-8 therm
Each feet-pound is defined as 1.3558179483314003 J and each therm as 105,505,585.262 J in this tool, so one ftlb equals 1.3558179483314003 ÷ 105,505,585.262 therm = 1.28506746e-8 therm.
Let d(ftlb) be the numeric amount in Feet-Pound (ftlb), and d(therm) the amount in Therm (therm). Then:
d(therm) = d(ftlb) × (1.3558179483314003 / 105,505,585.262)
Equivalently, divide by how many ftlb fit into one therm (joules per therm divided by joules per ftlb):
d(therm) = d(ftlb) ÷ 7.78169262e+7
Or: therm = feet-pound ÷ 7.78169262e+7
Examples
Example #1: Convert 1 ftlb to therm
1 ftlb = 1 ftlb × (1.3558179483314003/105,505,585.262) therm = 0.0000000129 therm
1 ftlb = 1 ftlb ÷ 7.78169262e+7 = 0.0000000129 therm
Example #2: Convert 10 ftlb to therm
10 ftlb = 10 ftlb × (1.3558179483314003/105,505,585.262) therm = 0.0000001285 therm
10 ftlb = 10 ftlb ÷ 7.78169262e+7 = 0.0000001285 therm
Summary
To convert Feet-Pound to Therm, multiply the value in ftlb by the ratio of joules per ftlb divided by joules per therm. Equivalently: value_therm = value_ftlb × (1.3558179483314003 / 105505585.262). Numerically, 1 ftlb equals 1.2850674634565778e-8 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 Feet-Pound to Therm is 1.285067e-8 (1 ftlb = 1.2850674634565778e-8 therm).
Conversion tables
| Feet-Pound (ftlb) | Therm (therm) |
|---|---|
| 0.1 | 0.0000000013 |
| 1 | 0.0000000129 |
| 2 | 0.0000000257 |
| 3 | 0.0000000386 |
| 4 | 0.0000000514 |
| 5 | 0.0000000643 |
| 6 | 0.0000000771 |
| 7 | 0.00000009 |
| 8 | 0.0000001028 |
| 9 | 0.0000001157 |
| Feet-Pound (ftlb) | Therm (therm) |
|---|---|
| 10 | 0.0000001285 |
| 20 | 0.000000257 |
| 30 | 0.0000003855 |
| 40 | 0.000000514 |
| 50 | 0.0000006425 |
| 60 | 0.000000771 |
| 70 | 0.0000008995 |
| 80 | 0.0000010281 |
| 90 | 0.0000011566 |
| 100 | 0.0000012851 |