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Grams to mL

100 grams of water is 100 milliliters, but 100 g of honey fills only 70 mL and 100 g of flour about 189 mL. Pick the ingredient and the grams to get milliliters, cups and spoons.

1 cup of water weighs 237 g (USDA: 8 fl oz serving = 237 g), per USDA FoodData Central. Spoon dry ingredients into the cup and level them off; scooping straight from the bag packs in more.

100 grams of water

99.8 mL

With measuring cups
1/3 cup + 1 tbsp + 1 1/2 tsp
Ounces (weight)
3.53 oz
Cups
0.422 cups
Tablespoons
6.75 tbsp
Teaspoons
20.3 tsp

Different ingredients weigh very different amounts per cup — the table shows the same 100 g for each.

100 g in milliliters, by ingredient
IngredientAmount
All-purpose flour189 mL
Bread flour173 mL
Whole wheat flour197 mL
Rice flour150 mL
Cornstarch185 mL
Cocoa powder, unsweetened275 mL
Rolled oats292 mL
White rice, uncooked128 mL
Granulated sugar118 mL
Brown sugar, packed108 mL
Powdered sugar, unsifted197 mL
Honey69.8 mL
Maple syrup75.1 mL
Butter104 mL
Olive oil110 mL
Vegetable (canola) oil109 mL
Peanut butter91.7 mL
Water99.8 mL
Milk, whole97 mL
Heavy cream99.4 mL
Plain yogurt96.6 mL
Parmesan, grated237 mL
Chocolate chips141 mL
Table salt81 mL
Almonds, whole165 mL

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How to convert grams to mL

Grams measure weight and milliliters measure volume, so you need the ingredient’s density — how many grams fit in one milliliter:

mL = grams ÷ density (g/mL)

Water has a density of about 1 g/mL, which is why 100 g of water is 100 mL. Olive oil is lighter, about 0.91 g/mL, so 100 g of it takes up about 110 mL; honey is heavier, 1.43 g/mL, so 100 g fills only 70 mL. The densities here come from USDA’s weight of one U.S. cup (236.6 mL) of each ingredient.

Density of common ingredients

Ingredient Density 100 g in mL
Water 1.00 g/mL 100 mL
Milk, whole 1.03 g/mL 97 mL
Heavy cream 1.01 g/mL 99 mL
Olive oil 0.91 g/mL 110 mL
Vegetable (canola) oil 0.92 g/mL 109 mL
Butter 0.96 g/mL 104 mL
Honey 1.43 g/mL 70 mL
Maple syrup 1.33 g/mL 75 mL
Granulated sugar 0.85 g/mL 118 mL
All-purpose flour 0.53 g/mL 189 mL
Table salt 1.23 g/mL 81 mL

For powders such as flour and sugar, the “density” is how they settle in a measuring cup, including the air between grains, so a packed or sifted cup gives a different answer. That is one reason recipes that matter — bread, pastry — are written in grams.

Measuring milliliters in the kitchen

A clear liquid measuring cup marked in milliliters is the easiest way to measure volume: set it on the counter and read at eye level. Dry ingredients should go in dry measuring cups, spooned in and leveled. If you have a scale, it is simpler to weigh in grams and skip the conversion; for water and most liquids you can also weigh in grams and read the same number in milliliters.

Liquids in recipes and on labels

European and Australian recipes often give liquids in grams because bakers weigh everything, while U.S. recipes use cups and milliliters. For water, milk, cream and stock the numbers are nearly the same — 250 g of milk is about 242 mL — so a small difference does not matter. For syrups, honey and oils, convert properly: 250 g of honey is only about 174 mL. Food labels in the U.S. list serving sizes by volume with the weight in grams beside it, which is a handy check on these densities. For small amounts, see teaspoons to grams.

Medicine and other liquids

Liquid medicines are dosed by concentration — milligrams of the drug per milliliter — not by the density of the liquid, so this converter is not for them. Follow the label or a pharmacist, and use the syringe or cup that comes with the medicine. For cooking volumes, see grams to cups and tablespoons to grams; to turn milliliters into fluid ounces, mL to ounces.

Frequently asked questions

Is 1 gram equal to 1 mL?

Only for water and liquids close to it. A milliliter of water weighs about 1 gram, but a milliliter of honey weighs 1.43 g and a milliliter of flour about 0.53 g.

How many mL is 100 grams?

100 mL of water, 97 mL of whole milk, 110 mL of olive oil, 118 mL of granulated sugar, 70 mL of honey and about 189 mL of all-purpose flour.

How do I convert grams to mL?

Divide the grams by the ingredient's density in grams per milliliter: 100 g of olive oil ÷ 0.91 g/mL ≈ 110 mL.

How many grams is 250 mL?

250 g of water, about 258 g of milk, 228 g of olive oil, 211 g of sugar and 132 g of flour. Switch the units to convert mL to grams.

Can I use this for medicine?

No. Liquid medicines are dosed by the concentration on the label, such as mg per mL. Follow the label or a pharmacist, and use the measuring device that comes with the medicine.