How to Convert Milliliters to Grams: The Complete Guide

Converting milliliters (mL) to grams (g) is one of the most common tasks in baking, cooking, chemistry, and manufacturing. Because milliliters measure volume and grams measure mass, you need the substance density to convert between them accurately.

The Conversion Formula

The core formula is: Weight (g) = Volume (mL) × Density (g/mL)

For water at room temperature with a density of 1.00 g/mL, 100 mL equals exactly 100 grams. For heavier substances like honey (density ~1.42 g/mL), 100 mL weighs 142 grams. For lighter powders like all-purpose flour (density ~0.53 g/mL), 100 mL weighs only 53 grams.