Momentum Calculator
A free, browser-based calculator. Runs entirely in your browser — no sign up, nothing stored.
100% FreeRuns in your browserBasic
Enter Values
Enter your values and press Calculate to see results.
How to use this calculator
- Enter mass (kg) and velocity (m/s).
- Read the momentum in kg·m/s.
How it works
Momentum = mass × velocity. It points in the direction of motion.
Worked example
10 kg at 5 m/s. Momentum = 50 kg·m/s.
Common mistakes
- Confusing momentum with kinetic energy — momentum is linear in speed, energy is squared.
- Dropping the sign — velocity (and momentum) has a direction.
Frequently asked questions
How is momentum different from kinetic energy?
Momentum (mv) scales with speed; kinetic energy (½mv²) scales with speed squared.
Related tools
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.