The Elastic Potential Energy Calculator helps you easily find the energy stored in a stretched or compressed spring. Using the formula U = ½ × k × x², this tool calculates the potential energy in joules (J) based on the spring constant and displacement. It’s useful for physics students, engineers, and anyone studying mechanics. Elastic potential energy explains how objects like springs, rubber bands, or trampolines store force when stretched. With this calculator, you can quickly determine how much energy is stored or released in any elastic system. Simple, accurate, and perfect for learning or research.