The formula to find an object's density is its mass divided by volume. Density is not possible to directly measure. To find the density of an object, it is necessary to find its mass and volume.
Density is a measure of how tightly packed matter is within an object, also known as its mass per unit volume. In order to find an object's density, it is necessary to find its mass by weighing it on a scale. The formula to find an object's volume is its length multiplied by width multiplied by height. The units for density are the units of measurements of the object's mass divided by volume. If the mass uses pounds and the volume uses cubic inches, then the density is pounds divided by cubic inches.