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Hooke's Law Calculator – Spring Force and Displacement

Solve spring mechanics problems with our Hooke's Law calculator. Find force, spring constant, or displacement using F = kx for physics and mechanical engineering.

F = kx

How Hooke's Law Works

1
Choose Unknown

Select what to calculate: force, spring constant, or displacement.

2
Enter Known Values

Input the two known variables from F, k, and x.

3
Get Results

See the calculated value plus elastic potential energy.

Hooke's Law Formulas

F = kx (Force = Spring Constant × Displacement)

k = F/x (Spring Constant)

x = F/k (Displacement)

PE = ½kx² (Elastic Potential Energy)

Real-World Applications

🚗 Vehicle suspension systems
⏰ Mechanical watches
🖊️ Retractable pens
🏋️ Gym equipment
🚪 Door closers
📏 Force measurement devices