mL to Grams Calculator
Convert milliliters to grams quickly using the density of your substance. Because different liquids and powders have different densities, 100 mL of honey weighs a lot more than 100 mL of flour. Pick a common substance or enter a custom density.
The relationship between milliliters and grams depends entirely on what you're measuring. A milliliter is a unit of volume, while a gram is a unit of mass. They're only equal for water at standard conditions.
Formula: Grams = Milliliters x Density (g/mL)
Common Substance Densities:
| Substance | Density (g/mL) | 100 mL = |
|---|---|---|
| Water | 1.00 | 100 g |
| Whole Milk | 1.03 | 103 g |
| Honey | 1.42 | 142 g |
| Olive Oil | 0.92 | 92 g |
| Flour | 0.53 | 53 g |
| Granulated Sugar | 0.85 | 85 g |
This distinction matters a lot in cooking and baking, where recipes might call for ingredients by volume (cups, mL) or by weight (grams). Weighing ingredients is generally more accurate than measuring by volume, especially for dry goods like flour that compress easily.
Why not just assume 1 mL = 1 g? That only works for water. Honey is 42% heavier per milliliter, while flour is nearly half as heavy. Using the wrong conversion can throw off a recipe significantly.