Physics calculator
Momentum Calculator
Calculate an object's linear momentum from its mass and velocity.
Momentum
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Direction—
Formulap = mv
How it works
Linear momentum is mass multiplied by velocity. Its sign records direction, so negative velocity produces negative momentum while mass itself cannot be negative.
p = mv
Worked example
A 10 kg mass moving at 3 m/s has momentum of 30 kg·m/s.
How to use this tool
- Enter the known values and choose units where available.
- Check the primary result and supporting details.
- Clear or replace an input to calculate another case.
Frequently asked questions
What happens with invalid or incomplete inputs?
The result remains blank until the required inputs form a finite, meaningful calculation. Zero denominators and physically impossible negative quantities are not calculated.
Can I use decimal values?
Yes. The tool accepts decimals and keeps full precision for the calculation while rounding the displayed result for readability.