Use a balance scale to compare an object with known masses
Read the mass directly from a digital scale
Use a spring scale only to find weight, then convert to mass if needed
Calculate mass using the formula mass = density × volume
Determine mass from force and acceleration using mass = force ÷ acceleration
Check the label or packaging for the listed mass
Use a laboratory balance for precise measurement
Convert from weight to mass using mass = weight ÷ gravitational acceleration