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The foot-poundal (symbol: ft-pdl) is a unit of energy that is part of the foot-pound-second system of units, in Imperial units introduced in 1879, and is from the specialized subsystem of English Absolut[1] (a coherent system).

The foot-poundal is equal to 1/32.174049 that of the more commonly used foot-pound force.


1 foot-poundal is equivalent to:

  • 0.031081 ftolbf
  • 0.0421401100938048 J (exactly)
  • 421401.100938048 erg (exactly)
  • 0.0004 BTUIT
  • 0.010065 calIT or 0.000 010 65 "food calorie" (kcal or Cal)
  • 0.37297 inch-pound force (inolbf)
  • 5.96752 inch-ounce force (inoozf)

See also


  1. ^ Edward F. Obert, Thermodynamics, McGraw-Hill Book Co., 1948.

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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