About the Momentum Calculator
Linear momentum p = mv — solve for momentum, mass or velocity, with the impulse needed to stop it.
Also known as: p = mv, linear momentum, momentum formula.
How to use this calculator
- Enter solve for.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
p = m × v
Worked example
Using the values pre-filled in the calculator above:
- Solve for: Momentum
- Mass = 1,500 kg
- Velocity = 20 m/s
the calculator returns:
- Momentum: 30,000 kg·m/s
- Mass: 1,500 kg
- Velocity: 20 m/s