ml to Grams Calculator

Grams equal milliliters only when the substance has a density of exactly 1 g/mL. Pure water at 4°C has this density, so 1 mL of water weighs 1 gram. Most other substances — like flour, sugar, or oil — have different densities, so their mL and gram values differ.

Multiply the volume in milliliters by the density of the substance in g/mL. The formula is: grams = milliliters × density. For example, 15 mL of milk (density ≈ 1.04 g/mL) equals 15 × 1.04 = 15.6 grams.

Divide the weight in grams by the density of the substance in g/mL. The formula is: milliliters = grams ÷ density. For example, 50 grams of flour (density ≈ 0.593 g/mL) equals 50 ÷ 0.593 ≈ 84.3 mL.

Only for pure water at 4°C. At room temperature water is still very close to 1 g/mL, so the approximation holds for most cooking purposes. However, for ingredients like flour (≈0.59 g/mL) or honey (≈1.42 g/mL), 1 mL is noticeably different from 1 gram.

It depends on the ingredient. 100 mL of water ≈ 100 g, 100 mL of milk ≈ 104 g, 100 mL of all-purpose flour ≈ 59 g, and 100 mL of granulated sugar ≈ 85 g. Use this calculator to get the exact conversion for your ingredient.

Milliliters measure volume (how much space a substance occupies), while grams measure mass (how heavy it is). They are related through density — a denser substance packs more mass into the same volume. That's why you need to know the ingredient's density to convert between the two units.

Common densities: water = 1.000 g/mL, milk = 1.035 g/mL, all-purpose flour = 0.593 g/mL, granulated sugar = 0.845 g/mL, butter = 0.911 g/mL, salt = 1.217 g/mL, cooking oil = 0.880 g/mL, honey = 1.420 g/mL. These values may vary slightly depending on temperature and brand.

For water-based liquids they are close enough for most recipes. However, for dry ingredients like flour or sugar, using mL and grams interchangeably can lead to significant errors. Always convert using the correct density when precision matters, such as in baking.