90 Grams of Milk to Cups
⅜ cup in a US cup — and what that looks like with a measuring spoon
90 grams of whole milk is ⅜ cup in a US cup. In the kitchen that is ¼ cup, 1 tablespoon plus 2¾ teaspoons.
Grams weigh and cups fill, so the answer only exists once you say what is in the cup. A US cup of whole milk weighs 244 g, and every figure on this page comes from that one number.
It also depends on whose cup you mean. In a 250 ml metric cup — the standard in the UK, Australia, New Zealand and Canada — 90 g of whole milk is ⅓ cup, because that cup holds about 5.7% more than the 236.6 ml US cup.
Round to the nearest measure in a standard cup set — ¼ cup — and you are 29 g under, about 32% of the amount.
90 g of milk in each cup standard
| Cup standard | Size | Grams per cup | Cups |
|---|---|---|---|
| US customary | 236.6 ml | 244 g | ⅜ |
| Metric (UK, AU, NZ, CA) | 250 ml | 258 g | ⅓ |
| Imperial (older UK) | 284 ml | 293 g | ⅓ |
A recipe that says "cups" without saying which one is almost always American. If it came from a British, Australian or New Zealand source, use the metric row.
How to measure 90 g of milk without scales
Pour milk into a liquid measuring jug and read it at eye level. A dry measuring cup filled to the brim is hard to carry without spilling.
Whole milk is 244 g per US cup — slightly heavier than water because of the milk solids. Skim milk is 245 g and most plant milks are about 240 g, so the difference rarely matters in a recipe.
- Build it as ¼ cup, 1 tablespoon plus 2¾ teaspoons rather than guessing at ⅜ of a cup.
- 90 g is 5.9 tablespoons of whole milk, at 15.25 g per tablespoon.
- As a liquid measure that is about 87 ml — read a jug at eye level, not from above.
Nearby amounts of milk
| Grams | US cups | Metric cups | Tablespoons |
|---|---|---|---|
| 18 g | ⅛ | ⅛ | 1.18 |
| 20 g | ⅛ | ⅛ | 1.31 |
| 40 g | ⅛ | ⅛ | 2.62 |
| 50 g | ¼ | ¼ | 3.28 |
| 60 g | ¼ | ¼ | 3.93 |
| 100 g | ⅜ | ⅜ | 6.56 |
| 130 g | ½ | ½ | 8.52 |
| 150 g | ⅝ | ⅝ | 9.84 |
90 g of something else
The same 90 g is a different number of cups for every ingredient, because they do not weigh the same for their size.
| Ingredient | Grams per US cup | US cups |
|---|---|---|
| Flour | 125 g | ¾ |
| Sugar | 200 g | ½ |
| Butter | 227 g | ⅜ |
| Water | 237 g | ⅜ |
90 grams in other units
| Unit | Amount |
|---|---|
| US cups | ⅜ |
| Tablespoons | 5.9 |
| Teaspoons | 17.7 |
| Ounces (weight) | 3.17 oz |
| Pounds | 0.20 lb |
| Millilitres (volume it fills) | 87 ml |
Frequently asked questions
How many cups is 90 grams of milk?
90 grams of whole milk is ⅜ cup in a US cup, based on 244 g per cup. A 250 ml metric cup gives ⅓ cup.
What is the easiest way to measure 90 g of milk?
¼ cup, 1 tablespoon plus 2¾ teaspoons — built from a standard cup and spoon set. Pour milk into a liquid measuring jug and read it at eye level. A dry measuring cup filled to the brim is hard to carry without spilling.
Is 90 g of milk the same in cups in the UK?
No. A UK, Australian, New Zealand or Canadian metric cup is 250 ml against the US cup's 236.6 ml, so 90 g of whole milk is ⅓ cup there and ⅜ cup in the US.
Can I just use ¼ cup instead?
¼ cup of whole milk weighs about 61 g, so you would be 29 g under. For a sauce or a soup that is fine; for a cake, where the flour-to-liquid ratio sets the crumb, weigh it.
How many ounces is 90 grams?
90 grams is 3.17 ounces by weight. Unlike cups, that answer is the same whatever you are measuring — ounces weigh, fluid ounces fill, and they are not the same unit.