Determine the substance’s density in grams per milliliter (g/mL)
Use the formula: milliliters = grams ÷ density
Divide the mass in grams by the density to get the volume in milliliters
If the density is 1 g/mL, grams and milliliters are equal
For water, 1 gram equals 1 milliliter
For other liquids or solids, use their specific density value
Make sure the units for density are in g/mL before calculating