Extension Spring Rate"k"Constant Calculator

Extension Spring Rate Constant Calculator

Extension Spring Dimensional Data

This calculator will calculate (estimate) the Spring Rate (k) of a extension spring. Spring rate is best determined by test and measurement techniques.

See the equations behind this calculator:
Extension Spring Rate "k" Constant Formula

Extension Spring Design Suggestions

Spring Terminology and Definitions
Belleville Spring Washer Equation and Calculator
Spring Types and Materials Review
Morrison's Spring Tables Design Reference
Rectangular Section Bar Steel Springs
Leaf Spring Design and Engineering Strength of Materials
Constant Force Spring Design and Equations
Coil Spring Engineering Design Application
Helical Compression Spring Critical Frequency Critical Frequency Formula and Calculator
Compression Spring Assembly Operating Life and Reliability Equations and Calculator

Extension Spring Constant Calculator
Design Variables
Modulus of Rigidity (G) =
Wire Diameter, inches (d) =
Number of Active Coils (n) =
Mean Coil Diameter, inches (D) =
Results
Spring Constant (k) =