Elastic Potential Energy Calculator
Solve for:
Elastic Energy ( U )
Equation for Elastic Potential Energy is U = 0.5 × k × Δx²
Choose to solve for Elastic Potential Energy ( U ), Spring Constant ( k ), or Displacement ( Δx ).
N/m
Spring Constant
Enter the spring constant in the specified unit (e.g., N/m).
m
Displacement
Enter the displacement in the specified unit (e.g., Meters).
Common Elastic Potential Energy Questions
What is the formula for elastic potential energy?
What units are used for elastic potential energy?
How is elastic potential energy used in real life?
Example Elastic Potential Energy Calculation
Example Problem:
A spring has a spring constant of 150 N/m. If the spring is compressed by 0.2 meters from its equilibrium position, how much elastic potential energy is stored in the spring?
Step 1:  Identify the given values
From the problem, we are given:
•   Spring constant:  k = 150 N/m
•   Displacement:  Δx = 0.2m
Step 2:  Write down the formula
The formula for elastic potential energy is:  U = 0.5 × k × Δx²
•   U = Elastic potential energy (in Joules)
•   k = Spring constant (in N/m)
•   Δx = Displacement from equilibrium (in meters)
Step 3:  Substitute the given values
U = 0.5 x (150) x (0.2)²:
Step 4:  Solve the exponent and multiply
(0.2)² = 0.04
U = 0.5 x 150 x 0.04
150 x 0.04 = 6
U = 0.5 x 6 = 3
Final Answer: 
The elastic potential energy stored in the spring is 3 Joules (J).