Use a measuring cup or graduated cylinder for liquids
Read the measurement at eye level
Measure irregular solids by water displacement
Use length × width × height for rectangular objects
Use πr²h for cylinders
Use 4/3πr³ for spheres
Use cubic units such as cm³, m³, or in³
Use liters or milliliters for liquid volume
Use a scale and density if volume must be calculated from mass
Ensure the container is level before measuring