1/2 Cup Brown Sugar in Grams: The Exact Weight

Half a US cup of packed brown sugar weighs about 110 grams, a useful conversion when a recipe gives volume but your scale measures weight. The exact amount can vary slightly with the sugar’s moisture and how firmly it is packed, so weighing is the most consistent way to measure it.

Ingredients

1/2 US cup packed brown sugar (about 110 g)
1 tablespoon (15 ml) water, only if needed to loosen dry, hardened sugar for measuring by volume

Instructions

Set a small bowl on a digital kitchen scale and press the tare button to bring the display to zero.
Spoon brown sugar into the bowl until the scale reads 110 g. Do not press or tamp it down when weighing; the weight is the target.
If you do not have a scale, spoon sugar into a dry 1/2-cup measuring cup and press it in firmly with the back of a spoon or your fingers. Add more sugar until the cup is full and level with the rim. This is the standard packed-cup method.
Use the measured sugar in your recipe. If measuring ahead, transfer it to an airtight container so it does not dry out.

Tips

Use the right kind of cup. A US 1/2-cup measure holds 8 US tablespoons, or about 118 ml by volume. A metric 125 ml measure is a little larger, so for accuracy use the gram weight when a recipe specifies it.
Know what “packed” means. Most US recipes that list brown sugar by cups mean it should be firmly packed. The sugar should hold the cup’s shape when turned out, without being compressed so hard that it becomes a solid block.
Expect a small range. Many baking conversion charts use approximately 100–110 g for 1/2 cup, depending on the sugar and packing method. For ordinary home baking, 110 g is a practical standard; follow a recipe’s stated gram amount if it provides one.
Soften hardened sugar safely. Brown sugar that has dried out can be softened briefly in a microwave with a damp paper towel nearby, checking every 10–15 seconds. Let it cool before handling, and do not add water directly unless you are prepared for the texture and moisture to change.

Serving Suggestions

This conversion is a measuring guide rather than a finished dish, so use the 110 g in any recipe calling for 1/2 cup packed brown sugar. It works in cookie dough, quick breads, muffins, oatmeal, barbecue sauce, glazes, and crumbles. In baking, add it with the other sugars or wet ingredients as directed by the recipe; in sauces, stir it in until dissolved.

Light and dark brown sugar can usually be weighed in the same amount. Light brown sugar has a milder molasses flavor, while dark brown sugar tastes deeper and more pronounced. Choose whichever the recipe names, or use one in place of the other if the flavor difference suits the dish.

Variations

Light brown sugar: Weigh 110 g for 1/2 cup packed. Its flavor is relatively mild and works well in delicate cookies and cakes.
Dark brown sugar: Weigh 110 g for the same volume. It contains more molasses than light brown sugar and brings a darker color and stronger flavor.
Loosely filled sugar: If a recipe explicitly says “unpacked” or “loosely packed,” do not compress the sugar. The cup will contain less than the standard 110 g, so use a weight specified by that recipe where possible.
DIY substitute: If you have white granulated sugar and molasses, combine 1/2 cup (about 100 g) granulated sugar with 1 tablespoon (15 ml) molasses for a close substitute for light brown sugar. For a darker result, add up to 2 tablespoons (30 ml) molasses. This mixture may be slightly softer or moister than packaged brown sugar, which can affect some baked goods.

Storage and Reheating

Store unused brown sugar in an airtight container in a cool, dry cupboard. It generally keeps well for months when sealed, although it may harden as it loses moisture; hardening alone does not mean it has spoiled. Discard it if you see mold, pests, or signs of contamination. Once mixed into a prepared dish, follow that dish’s storage instructions rather than storing it as dry sugar.

No reheating is needed for the measured sugar itself. To soften hardened sugar for later measuring, use a short microwave interval with a damp paper towel or place a slice of bread in the airtight container for several hours, then remove the bread. Do not leave the bread in long enough to become moldy. For any finished perishable dish made with the sugar, refrigerate it within 2 hours; most cooked leftovers keep for 3–4 days in the refrigerator. Reheat leftovers to 165°F (74°C).

Frequently Asked Questions

How many grams are in 1/2 cup of brown sugar?
Use about 110 g for 1/2 US cup of firmly packed brown sugar. Some references give a slightly lower number, often around 100 g, because packing and moisture vary. If a recipe gives its own gram measurement, use that amount.

Is 110 g for packed or unpacked brown sugar?
It is a practical conversion for packed brown sugar, the usual meaning when a US recipe simply says “1/2 cup brown sugar.” For unpacked sugar, the weight is lower and less predictable because it depends on how loosely it is filled.

Does light brown sugar weigh the same as dark brown sugar?
For kitchen conversions, treat them as the same weight: about 110 g per packed 1/2 cup. Their molasses content and flavor differ, but that difference does not usually require changing the measured weight.

Should I pack brown sugar when using a kitchen scale?
No. Put the bowl on the scale, tare it, and add sugar until it reads 110 g. Packing is needed when measuring by volume to make the cup amount consistent, not when measuring directly by weight.

What if my brown sugar is hard?
Break off what you need and soften it before measuring by volume, or weigh it directly if it is still easy to portion. For a larger amount, seal it with a slice of bread for several hours or use brief microwave bursts with a damp paper towel nearby. Avoid adding water directly, since that changes the sugar’s moisture.

Can I use a metric half-cup measure instead?
A US 1/2 cup is about 118 ml, while a 125 ml metric half-cup is larger. The difference may matter in precise baking. Use a scale and weigh 110 g, or check whether the recipe uses US or metric cup measures.

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