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This calculator computes the spring constant k for a compression spring that exerts a force F when deformed to the length Ldef.

  Spring free length, Lfree:    
  Deformed length, Ldef:    
  Applied load, F:    
  Spring Constant, k:  10.0  lbf/in
Equations Behind the Calculator
The spring constant k is found by inverting Hooke's Law,