Potential Energy of a Spring Formula | Examples - BYJUS The potential energy of a spring is given by, P.E = ½ k x 2. Where, k is the spring constant; x is the spring displacement; Solved Examples. Example 1: Determine the potential energy of a spring whose spring constant is 200 N/m and the displacement is 0.8 m. Solution: Given parameters are. k = 200 N/m. x = 0.8 m. The potential energy of a ...