Kilojoule to Feet-Pound Converter
Energy · unit-converter
Convert Kilojoule to Feet-Pound 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: Kilojoule (kj)
To: Feet-Pound (ftlb)
About Kilojoule
One kilojoule is 1,000 J. Scientific and engineering contexts often use kJ alongside joules.
About Feet-Pound
The feet-pound is a mechanical work unit common in US torque and ballistics contexts.
How to convert kilojoules to feet-pounds
1 kilojoule is equal to 737.56214927726535 feet-pound when both are expressed in joule-equivalents:
1 kj = (1,000 J ÷ 1.3558179483314003 J) ftlb = 737.56214927726535 ftlb
Each kilojoule is defined as 1,000 J and each feet-pound as 1.3558179483314003 J in this tool, so one kj equals 1,000 ÷ 1.3558179483314003 ftlb = 737.56214927726535 ftlb.
Let d(kj) be the numeric amount in Kilojoule (kj), and d(ftlb) the amount in Feet-Pound (ftlb). Then:
d(ftlb) = d(kj) × (1,000 / 1.3558179483314003)
Equivalently, divide by how many kj fit into one ftlb (joules per ftlb divided by joules per kj):
d(ftlb) = d(kj) ÷ 0.00135581794833
Or: feet-pound = kilojoule ÷ 0.00135581794833
Examples
Example #1: Convert 1 kj to feet-pound
1 kj = 1 kj × (1,000/1.3558179483314003) ftlb = 737.562149277 ftlb
1 kj = 1 kj ÷ 0.00135581794833 = 737.562149277 ftlb
Example #2: Convert 10 kj to feet-pound
10 kj = 10 kj × (1,000/1.3558179483314003) ftlb = 7375.62149277 ftlb
10 kj = 10 kj ÷ 0.00135581794833 = 7375.62149277 ftlb
Summary
To convert Kilojoule to Feet-Pound, multiply the value in kj by the ratio of joules per kj divided by joules per ftlb. Equivalently: value_ftlb = value_kj × (1000 / 1.3558179483314003). Numerically, 1 kj equals 737.5621492772653 ftlb.
Relationship context
You are converting between SI energy (joules) (Kilojoules) and US / imperial engineering units (BTU, therm, ft·lb) (Feet-Pounds). All values are mapped through joules first. The numeric factor is 7.375621e+2.
Conversion tables
| Kilojoule (kj) | Feet-Pound (ftlb) |
|---|---|
| 0.1 | 73.7562149277 |
| 1 | 737.562149277 |
| 2 | 1,475.12429855 |
| 3 | 2,212.68644783 |
| 4 | 2,950.24859711 |
| 5 | 3,687.81074639 |
| 6 | 4,425.37289566 |
| 7 | 5,162.93504494 |
| 8 | 5,900.49719422 |
| 9 | 6,638.0593435 |
| Kilojoule (kj) | Feet-Pound (ftlb) |
|---|---|
| 10 | 7,375.62149277 |
| 20 | 14,751.2429855 |
| 30 | 22,126.8644783 |
| 40 | 29,502.4859711 |
| 50 | 36,878.1074639 |
| 60 | 44,253.7289566 |
| 70 | 51,629.3504494 |
| 80 | 59,004.9719422 |
| 90 | 66,380.593435 |
| 100 | 73,756.2149277 |