// multi-utility computation suite · offline · instant · precise
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tool.spring-constant Calculator
Calculates spring constant (stiffness) from material properties (shear modulus, wire diameter, mean coil diameter, number of active coils) and natural frequency. Spring constant determines both static deflection and resonant frequency — critical for both load bearing and vibration isolation.
Inputs
Shear Modulus Gpa
Reference formula or conversion factor shown for context.
Wire Diameter Mm
Distance across a circle through its centre. Always confirm units match the rest of the calculation.
Coil Diameter Mm
Distance across a circle through its centre. Always confirm units match the rest of the calculation.
Active Coils
Count of items or occurrences.
Results
spring constant k (N/m)
Sample size or count used in the calculation.
spring constant (N/mm)
Sample size or count used in the calculation.
spring index C
A normalised score comparing the result to a reference baseline.
Wahl correction factor
A dimensionless multiplier applied in the calculation.