Hooke’s Law Spring Force
Calculate restoring force for a linear elastic spring.
Your numbers
Restoring force
Linear elastic range only; sign is opposite displacement. Plastic deformation and spring mass are omitted.
Scenario comparison
Up to three snapshots in this tab. Loading one replaces the current inputs.
Formula
F=−kx
Calculate restoring force for a linear elastic spring.
Worked example
- Spring stiffness (N/m)
- 200
- Displacement from equilibrium (m)
- 0.1
- Restoring force
- -20 N
Scope and limitations
Linear elastic range only; sign is opposite displacement. Plastic deformation and spring mass are omitted.
Inputs are checked for missing values and allowed ranges. A result outside the finite numeric range is not displayed. Rounding affects display, while the calculation uses the model’s numeric precision.
Check your units and assumptions before relying on a result. Changing a label does not convert a currency or physical unit.
Formula version: 2da2fa262a35 · Example checked: