# Equivalent spring

Calculates the Equivalent spring stiffness in Parallel and Series connection.

Case of two springs connected in series : `1/k_(eq) = 1/k_1+1/k_2`

Case of two springs connected in parallel : `k_(eq) = k_1+k_2`

## See also

Convert spring constant units

Hooke's law applied to a spring

Elastic Potential Energy

Physics Calculators