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Grams to Millilitres — Icing / Powdered Sugar
Converts gram of icing / powdered sugar to millilitre using its real density, not a generic volume factor. One gram is 1.9715686375 millilitre.
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In short
One gram of icing / powdered sugar is 1.9715686375 millilitre. Going the other way, one millilitre is 0.5072103405 gram. That works out at 2 gram = 3.943137275 millilitre and 4 = 7.88627455. The figure comes from icing / powdered sugar weighing 120 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 Grams to Millilitres — Icing / Powdered Sugar
- 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 Grams to Millilitres — Icing / Powdered Sugar
Icing sugar settles and clumps in the bag, so an unsifted cup can weigh 15–20 g more than a sifted one. For icings this matters: too much sugar by weight gives a stiff, grainy result that no amount of extra liquid quite fixes. Commercial icing sugar contains 2–3% cornflour as an anti-caking agent, which is why it thickens glazes slightly. The figure this page works from is 120 g per US cup, the spooned-and-levelled weight recorded by King Arthur Baking and the USDA food database. Converting gram to millilitre for icing / powdered sugar, the amounts that come up most often are: 25 gram = 49.3 millilitre; 50 gram = 98.6 millilitre; 75 gram = 148 millilitre; 100 gram = 197 millilitre; 150 gram = 296 millilitre; 200 gram = 394 millilitre; 250 gram = 493 millilitre; 500 gram = 986 millilitre; 1000 gram = 1972 millilitre.
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 icing / powdered sugar | 120 g |
|---|---|
| 1 Gram | 1.9715686375 Millilitre |
| 1 Millilitre | 0.5072103405 Gram |
| Worth knowing | Commercial icing sugar contains 2–3% cornflour as an anti-caking agent, which is why it thickens glazes slightly. |
The maths behind it
This tool uses millilitre = gram × 1.9715686375, derived from icing / powdered sugar weighing 120 g per US cup. Every intermediate value is shown on screen, so the result can be checked by hand.
Icing sugar settles and clumps in the bag, so an unsifted cup can weigh 15–20 g more than a sifted one. For icings this matters: too much sugar by weight gives a stiff, grainy result that no amount of extra liquid quite fixes.
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
Should I sift before or after measuring?
Follow the recipe's word order. "1 cup sifted" means sift then measure; "1 cup icing sugar, sifted" means measure then sift. The two differ by around 15 g, which is enough to notice in a thin glaze.
Why does a cup of icing / powdered sugar 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. Icing / powdered sugar has its own density — 120 g per US cup — so any generic volume converter gives the wrong answer here.
How much does the way I fill the cup matter?
A fair amount, because icing sugar clumps in the bag and an unsifted cup can carry 15–20 g more than a sifted one. For a glaze that is the difference between pourable and stiff, and adding liquid to correct it never quite recovers the texture. Sift, then measure — or weigh and skip the argument.
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.
Is there a limit on how often I can use the Grams to Millilitres — Icing / Powdered Sugar?
Free, unlimited, and no email address required. You can use it a hundred times a day and nothing changes.
Is my data uploaded anywhere?
No. The Grams to Millilitres — Icing / Powdered Sugar 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.
How is the result calculated?
It uses millilitre = gram × 1.9715686375, derived from icing / powdered sugar weighing 120 g per US cup. The full working is printed under the result, so you can follow every step rather than trusting a black box.
What do I get if I try it?
Enter 2 gram of icing / powdered sugar and the Grams to Millilitres — Icing / Powdered Sugar returns 3.943137275 millilitre.
What problem does the Grams to Millilitres — Icing / Powdered Sugar solve?
The jobs it is built 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. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
When is the Grams to Millilitres — Icing / Powdered Sugar 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 icing / powdered sugar is 120 g. 1 Gram is 1.9715686375 Millilitre. 1 Millilitre is 0.5072103405 Gram. 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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