One gram of whole milk is 0.96962392 millilitres, so converting grams of whole milk to millilitres means multiplying by 0.96962392. That factor is specific to this ingredient — it comes from its density, not from any relationship between the two units.
Water is the yardstick: 1 mL of it weighs 1 g. Whole milk comes in at 1.0313 g per mL, or 103.1% of water, which is why a cup of it is 244 g rather than 236.6 g. Volume and weight only line up for water, and only in metric.
Whole milk has a density of 1.0313 g per mL, so 100 mL of it weighs 103.1 g and 250 mL weighs 257.8 g. That single figure is what every other number on this page is built from — water is 1.00 g per mL, so this ingredient is 103.1% as heavy as the same volume of water.
Grams are the unit this conversion is really for. A domestic scale resolves to a gram, which is 0.41% of a cup of whole milk, so weighing gets an accuracy no measuring cup can reach. A 500 g pack of it is 2.049 cups, and a 1 kg pack 4.098.
What the number depends on: About 87% water, with dissolved sugars and protein making up the rest — which is what puts it just above water in density.
The formula
grams- The amount of whole milk you are converting, in grams
0.969623920082- Millilitres per gram for whole milk, from its density of 1.0313 g/mL
millilitres- The equivalent quantity in millilitres
How it works, step by step
- Enter the quantity in grams.
- It is multiplied by 0.969623920082, the millilitres-per-gram figure for whole milk.
- The result appears in millilitres, with a second reading in tsp beneath it.
- Use the measure table if you want a standard recipe quantity rather than a number you type in.
Worked examples
50 g of whole milk in millilitres
Take 50 g of whole milk: 50 × 0.96962392 gives 48.4812 millilitres. Doubling the batch takes it to 96.9624 millilitres, because the relationship is a straight proportion once the density is known.
150 g of whole milk in millilitres
A recipe calling for 150 g of whole milk needs 145.444 millilitres on the scale. The arithmetic is 150 × 0.96962392 = 145.44359, and halving the recipe halves the weight to 72.7218 millilitres.
500 g of whole milk in millilitres
Take 500 g of whole milk: 500 × 0.96962392 gives 484.812 millilitres. Doubling the batch takes it to 969.624 millilitres, because the relationship is a straight proportion once the density is known.
How to read your score
Frequently asked questions
How many millilitres are in 1 g of whole milk?
One gram of whole milk is 0.96962392 millilitres. Half that quantity is 0.484812 millilitres and double it is 1.93925 millilitres, so the figure scales straight up and down — there is no offset in this conversion, only the factor.
Why is a cup of whole milk not 236 g like water?
Because weight per cup depends on what is in the cup. Whole milk has a density of 1.0313 g per mL where water has 1.00, so a cup of it weighs 244 g rather than 236.6 g. That is a difference of 7.4 g per cup, and it is the reason a single volume-to-weight factor cannot be applied to every ingredient.
Does how I measure it change the weight?
Barely. Whole milk does not compress, so a cup of it is 244 g however it is poured — within about 1%, which is inside the accuracy of a domestic scale. This is the group where measuring by volume is defensible.
Is a fluid ounce of whole milk the same as an ounce?
No. A fluid ounce is a volume — one eighth of a US cup, 29.57 mL — and an ounce is a weight. One fluid ounce of whole milk weighs 1.076 oz, so the two readings differ by 7.59%. They coincide only for something with the density of water, and then only roughly.
Is this a US cup or a metric cup?
US customary: 236.59 mL, which is the cup every US recipe means. A metric cup is 250 mL, so the same cup of whole milk would weigh 257.83 g instead of 244 g — 13.8 g more, or 5.67%. Australian and some European recipes use the metric cup, and the difference is large enough to matter in baking.
Do I need a scale for this, or will measuring cups do?
At this size the spoon wins. One millilitre of whole milk is 1.031 g, and a scale reading to the nearest gram is working at 97% resolution on that — a measuring spoon is the more accurate instrument below about 5 g, which is why spice quantities are still written in spoons.
How much does 15 mL of whole milk weigh?
15 mL of whole milk comes to 15.47 g, or 15.47 grams. This page runs that calculation in reverse — enter a weight and it returns the volume — and the ml-to-grams page does it in the direction the question is usually asked.
Whole milk in grams and millilitres
| Grams | Millilitres | Unrounded |
|---|---|---|
| 5 g | 4.84812 mL | 4.8481196 |
| 10 g | 9.69624 mL | 9.696239201 |
| 25 g | 24.2406 mL | 24.240598 |
| 50 g | 48.4812 mL | 48.481196 |
| 100 g | 96.9624 mL | 96.96239201 |
| 125 g | 121.203 mL | 121.20299 |
| 150 g | 145.444 mL | 145.443588 |
| 200 g | 193.925 mL | 193.924784 |
| 250 g | 242.406 mL | 242.40598 |
| 300 g | 290.887 mL | 290.887176 |
| 500 g | 484.812 mL | 484.81196 |
| 1000 g | 969.624 mL | 969.6239201 |
Based on 244 g per cup of whole milk. One gram of whole milk is 0.96962392 millilitres.
| Measure | Grams | Ounces | Millilitres |
|---|---|---|---|
| 1 cup | 244 g | 8.61 oz | 236.6 mL |
| 3/4 cup | 183 g | 6.46 oz | 177.4 mL |
| 2/3 cup | 162.7 g | 5.74 oz | 157.7 mL |
| 1/2 cup | 122 g | 4.3 oz | 118.3 mL |
| 1/3 cup | 81.33 g | 2.87 oz | 78.86 mL |
| 1/4 cup | 61 g | 2.15 oz | 59.15 mL |
| 1 tbsp | 15.25 g | 0.538 oz | 14.79 mL |
| 1 tsp | 5.083 g | 0.179 oz | 4.929 mL |
US customary measures: 1 cup = 236.59 mL, 1 tbsp = 14.79 mL, 1 tsp = 4.93 mL.
| Ingredient | Grams per cup | Ounces per cup | Density (g/mL) |
|---|---|---|---|
| Tahini | 240 g | 8.466 oz | 1.014 |
| Half-and-half | 242 g | 8.536 oz | 1.023 |
| Egg whites | 243 g | 8.572 oz | 1.027 |
| Whole milk (this page) | 244 g | 8.607 oz | 1.031 |
| Skim milk | 245 g | 8.642 oz | 1.036 |
| Buttermilk | 245 g | 8.642 oz | 1.036 |
| Plain yogurt | 245 g | 8.642 oz | 1.036 |
Ordered by weight. The spread across this group is why a single generic cups-to-grams factor cannot work.