Kinetic Energy Calculator KE = ½ mv2 Solve for Energy (KE) Solve for Mass (m) Solve for Velocity (v) Kinetic Energy (KE) Joules (J) Kilojoules (kJ) Mass (m) kilogram (kg)

Elastic Potential Energy U = ½ kx2 Solve for Energy (U) Solve for Spring Constant (k) Solve for Displacement (x) Potential Energy (U) Joules (J) Kilojoules (kJ) Spring Constant (k)

E=mc² Calculator (Mass-Energy Equivalence) Calculator Instructions Theory & Formulas Mass (m): kg (kilograms) g (grams) mg (milligrams) µg (micrograms) amu (atomic mass units) lb (pounds) oz (ounces) Calculate Energy How

Electron Speed Calculator Classical vs. Relativistic Speeds from Kinetic Energy Introduction This calculator determines the speed of an electron given its kinetic energy (KE). It provides results from two perspectives: