ML to Grams Converter

Why milliliters need a density value

Milliliters measure volume; grams measure mass. Converting between them requires knowing the substance's density (grams per milliliter) — there's no universal "ml to g" factor, which is why this tool has a second input field instead of a single conversion button. It simply multiplies: grams = ml × density.

Worked example

250 mL of milk (density 1.03 g/mL): 250 × 1.03 = 257.50 grams. The same 250 mL of vegetable oil (density ≈ 0.92) comes out lighter, at 230.00 grams — same volume, different mass.

Typical densities

Water is the default because its density is almost exactly 1 g/mL at room temperature, which is why "1 mL of water weighs 1 gram" is true but "1 mL of milk weighs 1 gram" is off by 3%.