The mass of an object can be calculated using the equation:
\[ \text{Mass} (m) = \text{Volume} (V) \times \text{Density} (\rho) \]
Where:
- \( m \) is the mass of the object,
- \( V \) is the volume of the object,
- \( \rho \) is the density of the material the object is made of.
This equation indicates that the mass of an object is directly proportional to its volume and its density.