Feet-Pound to Gigajoule Converter
Energy · unit-converter
Convert Feet-Pound to Gigajoule 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: Gigajoule (gj)
About Feet-Pound
The feet-pound is a mechanical work unit common in US torque and ballistics contexts.
About Gigajoule
One gigajoule is 1,000,000,000 J. Utility-scale and fuel-system reporting commonly use GJ.
How to convert feet-pounds to gigajoules
1 feet-pound is equal to 1.35581795e-9 gigajoule when both are expressed in joule-equivalents:
1 ftlb = (1.3558179483314003 J ÷ 1,000,000,000 J) gj = 1.35581795e-9 gj
Each feet-pound is defined as 1.3558179483314003 J and each gigajoule as 1,000,000,000 J in this tool, so one ftlb equals 1.3558179483314003 ÷ 1,000,000,000 gj = 1.35581795e-9 gj.
Let d(ftlb) be the numeric amount in Feet-Pound (ftlb), and d(gj) the amount in Gigajoule (gj). Then:
d(gj) = d(ftlb) × (1.3558179483314003 / 1,000,000,000)
Equivalently, divide by how many ftlb fit into one gj (joules per gj divided by joules per ftlb):
d(gj) = d(ftlb) ÷ 7.37562149e+8
Or: gigajoule = feet-pound ÷ 7.37562149e+8
Examples
Example #1: Convert 1 ftlb to gigajoule
1 ftlb = 1 ftlb × (1.3558179483314003/1,000,000,000) gj = 0.0000000014 gj
1 ftlb = 1 ftlb ÷ 7.37562149e+8 = 0.0000000014 gj
Example #2: Convert 10 ftlb to gigajoule
10 ftlb = 10 ftlb × (1.3558179483314003/1,000,000,000) gj = 0.0000000136 gj
10 ftlb = 10 ftlb ÷ 7.37562149e+8 = 0.0000000136 gj
Summary
To convert Feet-Pound to Gigajoule, multiply the value in ftlb by the ratio of joules per ftlb divided by joules per gj. Equivalently: value_gj = value_ftlb × (1.3558179483314003 / 1000000000). Numerically, 1 ftlb equals 1.3558179483314003e-9 gj.
Relationship context
You are converting between US / imperial engineering units (BTU, therm, ft·lb) (Feet-Pounds) and SI energy (joules) (Gigajoules). All values are mapped through joules first. The numeric factor is 1.355818e-9.
Conversion tables
| Feet-Pound (ftlb) | Gigajoule (gj) |
|---|---|
| 0.1 | 0.0000000001 |
| 1 | 0.0000000014 |
| 2 | 0.0000000027 |
| 3 | 0.0000000041 |
| 4 | 0.0000000054 |
| 5 | 0.0000000068 |
| 6 | 0.0000000081 |
| 7 | 0.0000000095 |
| 8 | 0.0000000108 |
| 9 | 0.0000000122 |
| Feet-Pound (ftlb) | Gigajoule (gj) |
|---|---|
| 10 | 0.0000000136 |
| 20 | 0.0000000271 |
| 30 | 0.0000000407 |
| 40 | 0.0000000542 |
| 50 | 0.0000000678 |
| 60 | 0.0000000813 |
| 70 | 0.0000000949 |
| 80 | 0.0000001085 |
| 90 | 0.000000122 |
| 100 | 0.0000001356 |