Brown Sugar Cups To Grams Converter
Convert packed, lightly packed or loose brown sugar cups to grams for UK baking, with cup-system, muscovado, reverse grams-to-cups and recipe scaling options.
Convert Brown Sugar
Brown Sugar Result
1 cup of packed brown sugar is estimated at 213 g.
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Quick Answer: One Cup Of Brown Sugar In Grams
For a practical baking conversion, use 213 g for one 240 ml cup of packed light or dark brown sugar. This follows the King Arthur Baking ingredient weight chart, which lists packed brown sugar at 213 g per cup. Some USDA-derived references use about 220 g for one packed cup. That difference is normal because brown sugar changes with moisture, brand and how firmly it is packed.
If a recipe says “packed brown sugar”, press the sugar into the cup enough that it holds the cup shape when tipped out. If the recipe simply says brown sugar and comes from a UK source, weighing grams is safer than guessing a cup. If the recipe is American, packed is often implied for brown sugar, especially in cookies, brownies, crumble toppings and barbecue sauces.
Brown Sugar Conversion Formula
The calculator starts with a grams-per-240-ml-cup weight, adjusts it for the selected cup system, then multiplies by the recipe scale.
grams = cups x grams per 240 ml cup x selected cup ml / 240 x recipe multiplier
cups = grams / (adjusted grams per cup x recipe multiplier)
For example, one metric cup of packed brown sugar is 213 x 250 / 240 = 221.9 g. A half batch of that amount would be about 111 g.
Packed, Lightly Packed And Loose Brown Sugar
Brown sugar contains molasses, so it sticks together and can be compressed. A packed cup weighs much more than a loose scoop. That is why “1 cup brown sugar” is less clear than “1 cup packed brown sugar” or “213 g brown sugar”. This converter uses 213 g for a packed 240 ml cup, 190 g for a lightly packed cup and 150 g for a loose cup. Those lighter values are kitchen estimates for cases where a recipe does not say packed.
Muscovado is usually moist and dense. It behaves more like a packed sugar than a loose granulated sugar, but brands vary. If you are making a recipe where sugar weight affects structure, such as cookies, flapjacks, brownies or sponge, weigh the sugar rather than relying on a cup measure.
Brown Sugar Cups To Grams Table
| Cups | Packed Brown Sugar | Lightly Packed | Loose Brown Sugar | Common Use |
|---|---|---|---|---|
| 1/4 cup | 53 g | 48 g | 38 g | Small sauce, crumble or glaze. |
| 1/3 cup | 71 g | 63 g | 50 g | Cookie batch adjustment. |
| 1/2 cup | 107 g | 95 g | 75 g | Common cake, muffin or brownie amount. |
| 3/4 cup | 160 g | 143 g | 113 g | Cookies, tray bakes or marinades. |
| 1 cup | 213 g | 190 g | 150 g | Standard American recipe amount. |
| 2 cups | 426 g | 380 g | 300 g | Large batch or catering bake. |
US Cups, Metric Cups And UK Baking
NIST lists 240 ml as a common US legal cup in cooking measurement guidance. Metric measuring cups are often 250 ml, and an old imperial cup is larger again. If you are converting an American recipe, the 240 ml option is usually the best starting point. If your measuring set is marked 250 ml, choose metric cup and expect a slightly larger gram result.
For brown sugar, the cup system is less important than packing style, but both matter. One packed US legal cup is 213 g. One packed metric cup is about 222 g. One loose US cup with the converter’s loose setting is only 150 g. The difference between packed and loose can be enough to change spread, chew and sweetness in cookies.
Worked Baking Examples
Choose packed and enter 0.5 cups. The result is about 107 g with a 240 ml cup. This is a common cookie and brownie amount.
Enter 0.75 cups and set recipe multiplier to 2. The result is about 320 g packed brown sugar.
Switch to grams to cups and enter 200 g. With packed brown sugar, the result is about 0.94 cup, just under one packed cup.
How To Measure Brown Sugar Without A Scale
- Break up lumps before measuring so the cup fills evenly.
- For packed sugar, press it into the cup with the back of a spoon.
- Level the cup with a knife or straight edge.
- Tip the cup out; packed sugar should roughly keep the cup shape.
- For sticky muscovado, wipe the measuring cup before the next ingredient.
- For repeat baking, write down the gram weight that worked best for your recipe.
Grams To Cups Table
| Grams | Packed Cups | Lightly Packed Cups | Loose Cups | Note |
|---|---|---|---|---|
| 50 g | 0.23 cup | 0.26 cup | 0.33 cup | Small sauce or topping. |
| 100 g | 0.47 cup | 0.53 cup | 0.67 cup | Close to half a packed cup. |
| 150 g | 0.70 cup | 0.79 cup | 1.00 cup | One loose cup by this converter. |
| 200 g | 0.94 cup | 1.05 cups | 1.33 cups | Almost one packed cup. |
| 250 g | 1.17 cups | 1.32 cups | 1.67 cups | Half of a 500 g bag. |
| 500 g | 2.35 cups | 2.63 cups | 3.33 cups | One common UK retail bag. |
FAQ
How many grams are in one cup of packed brown sugar?
Use about 213 g for one 240 ml cup of packed light or dark brown sugar. Some references use about 220 g, so brand and packing can shift the result.
Does dark brown sugar weigh more than light brown sugar?
Usually not by enough to change a home recipe if both are packed in the same way. Moisture and packing style matter more.
What does packed brown sugar mean?
It means the sugar is pressed into the measuring cup instead of loosely scooped. Packed sugar should hold the cup shape when tipped out.
Can I use this for muscovado sugar?
Yes, choose the muscovado setting as a starting point. Very moist or coarse muscovado may need a custom weighed-cup value.
Should I use grams or cups for baking?
Use grams when possible. Brown sugar is one of the ingredients where cup measures can vary a lot because of packing.
Why does my recipe say 1 cup equals 220 g?
That is another common packed brown sugar value. Use custom density if your recipe author or packet gives a different grams-per-cup figure.
Sources
- King Arthur Baking. (2026). Ingredient Weight Chart. King Arthur Baking. https://www.kingarthurbaking.com/learn/ingredient-weight-chart
- National Institute of Standards and Technology. (2025). Metric Kitchen: Cooking Measurement Equivalencies. NIST. https://www.nist.gov/pml/owm/cooking-measurement-equivalencies
- National Institute of Standards and Technology. (2008). Guide For The Use Of The International System Of Units (SI), NIST Special Publication 811. NIST. https://doi.org/10.6028/NIST.SP.811e2008
- U.S. Department of Agriculture. (2002). Nutritive Value Of Foods, Home And Garden Bulletin No. 72. USDA. https://www.ars.usda.gov/ARSUserFiles/80400525/data/hg72/hg72_2002.pdf