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Cups to Grams — Milk
Converts us cup of milk to gram using its real density, not a generic volume factor. One us cup is 240 gram.
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In short
One us cup of milk is 240 gram. Going the other way, one gram is 0.0041666667 us cup. That works out at 2 us cup = 480 gram and 4 = 960. The figure comes from milk weighing 240 g per US cup — a generic cups-to-grams converter assumes water and will give you the wrong answer here, because volume to weight depends entirely on what is in the cup.
How to use the Cups to Grams — Milk
- Type the value you want to convert.
- Pick the unit you are converting from and the unit you want.
- The converted value and the exact conversion factor are shown instantly.
About the Cups to Grams — Milk
Whole milk is very slightly denser than water because of its dissolved sugars and proteins, though the difference is small enough that most recipes treat a cup of milk as 240 ml and move on. Skimmed milk is marginally denser than whole, since fat is the lightest component. Buttermilk and single cream are close enough to substitute by weight in most batters. The figure this page works from is 240 g per US cup, the spooned-and-levelled weight recorded by King Arthur Baking and the USDA food database. Converting us cup to gram for milk, the amounts that come up most often are: 1/4 us cup = 60 gram; 1/3 us cup = 80 gram; 1/2 us cup = 12 gram; 2/3 us cup = 16 gram; 3/4 us cup = 18 gram; 1 us cup = 24 gram; 1 1/2 us cup = 36 gram; 2 us cup = 48 gram; 3 us cup = 72 gram.
What people use it for
- Following a US recipe with a kitchen scale instead of cup measures.
- Scaling a recipe up or down without compounding measuring error.
- Converting a European recipe written in grams into cups.
Details
| 1 US cup of milk | 240 g |
|---|---|
| 1 US cup | 240 Gram |
| 1 Gram | 0.0041666667 US cup |
| Worth knowing | Buttermilk and single cream are close enough to substitute by weight in most batters. |
The maths behind it
This tool uses gram = us cup × 240, derived from milk weighing 240 g per US cup. Every intermediate value is shown on screen, so the result can be checked by hand.
Whole milk is very slightly denser than water because of its dissolved sugars and proteins, though the difference is small enough that most recipes treat a cup of milk as 240 ml and move on. Skimmed milk is marginally denser than whole, since fat is the lightest component.
Where this tool stops
Volume-to-weight conversion is inherently approximate. Humidity, brand, how finely something is milled and how long it has sat in the cupboard all shift the figure by a few per cent.
Frequently asked questions
Is a cup of milk 240 g or 240 ml?
Both, near enough. Milk is about 1.03 g per ml, so a 240 ml cup weighs roughly 245 g. For baking the difference is irrelevant; for a precise custard or a large batch it starts to show.
Why does a cup of milk not weigh the same as a cup of water?
Because a cup measures volume and a scale measures weight, and the two only agree for water. Milk has its own density — 240 g per US cup — so any generic volume converter gives the wrong answer here.
How much does the way I fill the cup matter?
Not at all, and this is one of the ingredients where cup measuring is genuinely reliable. Milk is a liquid: it cannot be packed or scooped loosely, so a cup is 240 g whoever pours it. Read the jug at eye level and the measurement is as good as a scale would give you.
Is a US cup the same as a UK or metric cup?
No. A US cup is 236.6 ml, a metric cup is 250 ml and an old UK cup is 284 ml. These pages use the US cup, because that is what US recipes mean.
Do I need an account to use the Cups to Grams — Milk?
No charge and no sign-up. There is no free tier to run out of because there is no paid tier — inputtesthub.com is funded by advertising rather than by metering the page.
Can you see what I put into this page?
No. The Cups to Grams — Milk runs entirely in your browser using JavaScript. Nothing is transmitted, logged or stored, which you can verify yourself in the Network tab of your browser's developer tools.
Can I check the maths myself?
It uses gram = us cup × 240, derived from milk weighing 240 g per US cup. The full working is printed under the result, so you can follow every step rather than trusting a black box.
Can you show an example?
Enter 2 us cup of milk and the Cups to Grams — Milk returns 480 gram.
What problem does the Cups to Grams — Milk solve?
In practice it gets used for three things: following a US recipe with a kitchen scale instead of cup measures. Scaling a recipe up or down without compounding measuring error. Converting a European recipe written in grams into cups. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
When is the Cups to Grams — Milk not the right tool?
Volume-to-weight conversion is inherently approximate. Humidity, brand, how finely something is milled and how long it has sat in the cupboard all shift the figure by a few per cent. Knowing where a tool stops being trustworthy matters more than the cases where it works.
Which values should I know?
1 US cup of milk is 240 g. 1 US cup is 240 Gram. 1 Gram is 0.0041666667 US cup. These are printed on the page itself, so you do not have to take them on trust.
Can I rely on this for exact work?
The calculation runs in double precision and the result is shown to ten significant figures, so converting a value and converting it back returns the original. What is displayed is rounded for readability; what is copied is not.
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