Power and Energy
caltoft·lbf
Convert thermochemical calories (cal) to foot-pounds force (ft·lbf).
Factor1 cal = 3.08596 ft·lbf
Converter
cal
Accepts numbers or expressions, e.g. 150 + 14.7
Result
ft·lbf
Rendered to 6 significant figures.
Formula
Formula
ft·lbf = cal × 3.08596
Multiply any value in thermochemical calories by 3.08596 to obtain the value in foot-pounds force.
Worked example
Convert 100 cal to ft·lbf.
- 01Start with 100 cal.
- 02Multiply by the conversion factor: 100 × 3.08596 = 308.596 ft·lbf.
Result100 cal = 308.596 ft·lbf
Conversion table
| cal | ft·lbf |
|---|---|
| 1 | 3.086 |
| 2 | 6.1719 |
| 5 | 15.43 |
| 10 | 30.86 |
| 20 | 61.719 |
| 50 | 154.3 |
| 100 | 308.6 |
| 200 | 617.19 |
| 500 | 1543 |
| 1000 | 3086 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from cal to ft·lbf?
1 cal equals 3.08596 ft·lbf. To convert, multiply the value in thermochemical calories by 3.08596.
How do I convert 1 cal to ft·lbf?
1 cal = 3.08596 ft·lbf. For any value, multiply by 3.08596.
How do I convert ft·lbf back to cal?
Divide by the same factor — or equivalently, multiply by 0.3240483. So 1 ft·lbf = 0.324048 cal.
When would I need to convert thermochemical calorie to foot-pound force?
Energy conversions are needed when reconciling fuel/electrical billing, calculating thermal duties, and aligning calorimetry or HHV/LHV figures across data sources.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).