# Number Density

Written by Jerry Ratzlaff on . Posted in Classical Mechanics

## Number Density

Number density ( $$n$$ ) is the number of items per unit volume.

### Number Density formula

$$n = \frac {N}{V}$$          $$number \; density \;=\; \frac { total \; number \; of \; items } { volume }$$

Where:

$$n$$ = number density

$$N$$ = total number of items

$$V$$ = volume