How do you calculate volume of a beaker when you have weight and mass?

To calculate the volume of a beaker using weight and mass, you first need to determine the density of the liquid it contains. Density is defined as mass divided by volume (density = mass/volume). Rearranging this formula gives you volume = mass/density. If you know the weight of the liquid (which is the force due to gravity on the mass), you can convert weight to mass by dividing by the acceleration due to gravity (approximately 9.81 m/s²) and then use the density to find the volume.