Convert millilitres to grams, or grams to millilitres, for water, milk, oil, honey, syrups, spirits and other liquids, or any substance whose density you know.
grams = mL × density (g/mL) · mL = grams ÷ density
Near room temperature. The g/mL figure is also the specific gravity, and multiplying by 100 gives grams per 100 mL as printed on many labels.
| Substance | g/mL | 100 mL | 1 tbsp | 1 tsp |
|---|---|---|---|---|
| Water | 0.998 | 100 g | 14.8 g | 4.9 g |
| Whole milk | 1.03 | 103 g | 15.2 g | 5.1 g |
| Buttermilk | 1.03 | 103 g | 15.2 g | 5.1 g |
| Heavy cream | 1.006 | 101 g | 14.9 g | 5 g |
| Vegetable or olive oil | 0.92 | 92 g | 13.6 g | 4.5 g |
| Honey | 1.42 | 142 g | 21 g | 7 g |
| Maple syrup | 1.33 | 133 g | 19.7 g | 6.6 g |
| Molasses | 1.41 | 141 g | 20.8 g | 6.9 g |
| Light corn syrup | 1.38 | 138 g | 20.4 g | 6.8 g |
| Simple syrup (1:1 by weight) | 1.23 | 123 g | 18.2 g | 6.1 g |
| Soy sauce | 1.15 | 115 g | 17 g | 5.7 g |
| Lemon juice | 1.03 | 103 g | 15.2 g | 5.1 g |
| Vinegar | 1.01 | 101 g | 14.9 g | 5 g |
| Pure ethanol | 0.789 | 79 g | 11.7 g | 3.9 g |
| Vodka or gin, 40% ABV | 0.948 | 95 g | 14 g | 4.7 g |
| Dry wine | 0.99 | 99 g | 14.6 g | 4.9 g |
| Beer | 1.01 | 101 g | 14.9 g | 5 g |
| Glycerin | 1.26 | 126 g | 18.6 g | 6.2 g |
| Isopropyl alcohol (99%) | 0.786 | 79 g | 11.6 g | 3.9 g |
A banana bread recipe calls for 240 mL milk, 120 mL oil and 60 mL honey. Instead of three measuring jugs (and scraping honey out of one), you put the bowl on a scale and pour each liquid in, zeroing the scale between them.
Step 1: Multiply each volume by its density
| Ingredient | mL | g/mL | Grams |
|---|---|---|---|
| Milk | 240 | 1.03 | 247 |
| Vegetable oil | 120 | 0.92 | 110 |
| Honey | 60 | 1.42 | 85 |
Step 2: Pour to each weight, pressing tare in between
The honey (the Load Example) is the line that matters most. At 85 g for 60 mL it's 42% heavier than water, and pouring it by weight means none is left clinging to a measuring cup.
Density is mass per volume, in g/mL (the same as g/cm³ and kg/L). Specific gravity is the same number divided by the density of water, so it has no unit. Because water is so close to 1 g/mL, the two values are practically identical: a liquid with a specific gravity of 1.05 weighs about 1.05 g per mL. Only water near 4 °C hits exactly 1. At room temperature, a millilitre of water weighs 0.998 g.
That makes a hydrometer reading usable in this calculator directly. Choose "Other" and type the specific gravity as the density.
| Liquid | Specific gravity | Grams per litre |
|---|---|---|
| Wort before fermenting (OG 1.050) | 1.05 | 1,048 |
| Finished beer (FG 1.010) | 1.01 | 1,008 |
| Seawater | 1.025 | 1,023 |
| Car antifreeze, 50/50 glycol mix | 1.07 | 1,068 |
| Simple syrup, 2:1 rich | 1.33 | 1,327 |
Ethanol is only 0.789 g/mL, so the more alcohol a drink contains, the lighter it is. A 40% vodka is about 0.948 g/mL, so a 30 mL pour weighs about 28.4 g. Bars that pour by weight use these figures to check measures and stock levels.
Alcohol and water also shrink when mixed: 50 mL of ethanol plus 50 mL of water gives about 96 to 97 mL, not 100. That's why you can't simply average the densities of the two, and why distillers measure strength with alcoholometric tables rather than by mixing volumes.
Flour, sugar and salt have a bulk density that depends on how much air is between the grains. Spooned and levelled, flour is about 0.53 g/mL; scooped straight from the bag it can be 0.6 g/mL or more. The dry options in the tool use the spooned figures, so treat their results as a guide and weigh when it matters.
For cups of flour, sugar or butter, the cups to pounds converter has gram weights for many more ingredients. For volume-only conversions, use the mL to cups converter.
Only for water, and even then it is 99.8 g at room temperature. 100 mL of milk is about 103 g, of oil about 92 g, and of honey about 142 g.
About 7 g. A US teaspoon is 4.93 mL and honey is about 1.42 g/mL.
Divide by the density. 200 g of oil ÷ 0.92 g/mL = 217 mL. Use the Grams → mL button above.
About 258 g, using 1.03 g/mL for whole milk. Skimmed milk is very slightly denser.
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