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Kinetic Energy Calculator

Calculate kinetic energy, momentum, impact force, and stopping distance — solve for any variable, compare objects, and explore real-world examples.

KE = ½mv² · Momentum p = mv · Supports imperial & metric units

Choose what to solve for — enter any two known values

Solve For

Unit System

Kinetic Energy (J)

Mass (kg)

Velocity (m/s)

Optional: Impact & Stopping Distance

Stopping Distance (m)

Impact Force (N)

Calculated from KE ÷ distance

Real-World Presets

Results

—

Kinetic Energy

Mass—

Velocity—

Momentum (p)—

Impact Force—

Velocity Scaling

KE at different speeds (same mass)