Brown sugar grams to cups conversions come with one extra rule that trips up a lot of bakers: brown sugar is almost always measured packed, not loose. 1 packed cup of brown sugar weighs about 220 grams noticeably more than a cup of granulated sugar at the same volume.
Use the calculator above to convert any amount of brown sugar or more than 50 other ingredients instantly with our Grams to Cups converter. Below, you'll find a complete conversion chart, what “packed” actually means, and answers to the most common questions about this sticky, sometimes stubborn ingredient.
How Many Grams Is 1 Cup of Brown Sugar? (Quick Chart)
Here's how common gram amounts of brown sugar convert to cups:
| Grams | Brown Sugar in Cups |
| 50g | 0.23 cups |
| 100g | 0.45 cups |
| 150g | 0.68 cups |
| 200g | 0.91 cups |
| 220g | 1.00 cup |
| 240g | 1.09 cups |
A level, packed cup of brown sugar weighs about 220 grams that's the figure every other number on this page is built from.
Is Brown Sugar Measured Packed or Loose?
Packed, by default. Unless a recipe specifically says "loosely packed" or "unpacked," assume brown sugar should be pressed firmly into the measuring cup with the back of a spoon until it holds the cup's shape when turned out.
What Does "Packed Cup" Mean in Baking?
A "packed cup" means the ingredient is pressed down firmly enough that it holds together and keeps the cup's shape when tipped out you shouldn't see loose crumbles falling apart. For brown sugar specifically, this packing is what makes the standard 220-grams-per-cup figure accurate. A loosely spooned cup of brown sugar can weigh 15–20% less than a properly packed one, since packing removes the air pockets between the sugar's moist crystals.
How to Convert Brown Sugar Grams to Cups (Formula)
Cups = Grams ÷ 220
Worked Example: 200 Grams of Brown Sugar
- Take the grams-per-cup value for packed brown sugar: 220 grams.
- Divide: 200 ÷ 220 = 0.91.
- Answer: 0.91 cups, just under a full cup.
Brown Sugar to Grams Conversion (Reverse Direction)
Going the other way, multiply the number of cups by 220:
- 1 cup (packed) = 220 grams
- 1/2 cup (packed) = 110 grams
- 1/4 cup (packed) = 55 grams
- 1 tablespoon (packed) ≈ 13.75 grams
Does Light and Dark Brown Sugar Weigh the Same?
Yes, essentially. Light and dark brown sugar have the same density, since the only real difference between them is how much molasses was added back during processing dark brown sugar just has more. That extra molasses affects flavor and color, not weight per cup, so the 220-grams-per-cup figure applies equally to both.
How to Measure Brown Sugar Correctly (Without a Scale)
- Scoop the brown sugar into the measuring cup.
- Press it down firmly with the back of a spoon, packing it as you go.
- Add more sugar and repeat pressing until the cup is completely full and packed.
- Level the top with the flat edge of a knife.
- Turn it out a properly packed cup should hold its shape.
This packing step is the single biggest reason brown sugar measurements go wrong. Skipping it and just scooping loosely can undermeasure a recipe by 15–20%.
Why Pack Brown Sugar When Measuring?
Brown sugar's molasses coating makes the crystals slightly moist and clingy, which traps more air between them than dry granulated sugar. Packing pushes that air out, giving a consistent, repeatable measurement every time. Without packing, the same "1 cup" could vary significantly between two people measuring the exact same sugar.
How to Soften Hardened Brown Sugar
If your brown sugar has hardened into a solid block, it's still usable the moisture just needs to be redistributed:
- Microwave method: Place the sugar with a damp paper towel in a microwave-safe bowl, cover, and heat in 20-second bursts until soft.
- Bread method: Store the sugar in an airtight container with a slice of bread overnight the sugar will absorb moisture from the bread.
- Terracotta disc: A soaked terracotta "brown sugar saver" disc, kept in the container, prevents hardening in the first place.
Once softened, the sugar should measure the same as before hardening doesn't change the sugar's actual density, just how easy it is to scoop.
Brown Sugar Storage Tips
Store brown sugar in an airtight container or a resealable bag with as much air pressed out as possible. Moisture loss to the surrounding air is what causes hardening, so an airtight seal is the main defense. Keeping a terracotta disc or a small piece of apple in the container also helps maintain moisture over time.
Substitute for Brown Sugar
If you're out of brown sugar, you can make a close substitute at home:
Homemade brown sugar recipe:
- Combine 1 cup granulated sugar with 1 tablespoon molasses (for light brown sugar) or 2 tablespoons molasses (for dark brown sugar).
- Mix thoroughly with a fork until the molasses is evenly distributed and the mixture looks like standard brown sugar.
This homemade version measures and packs the same way as store-bought brown sugar, so the 220-grams-per-cup conversion still applies.
Brown Sugar vs. White Sugar in Baking
Brown sugar and granulated white sugar aren't just different in flavor they behave differently in recipes, too. Brown sugar's molasses content adds moisture, which can make baked goods softer and chewier, while granulated sugar tends to produce a crisper texture. This is also why the two ingredients aren't a 1:1 cup-for-cup swap by weight: 1 cup of brown sugar (220g) is heavier than 1 cup of granulated sugar (200g), so substituting one for the other by volume slightly changes both the sweetness and the moisture in the final result.
FAQ’s
How many grams is 1 cup of brown sugar?
1 packed cup of brown sugar weighs about 220 grams. This assumes the standard packed measurement most recipes expect.
How many cups is 100 grams of brown sugar?
100 grams of brown sugar is about 0.45 cups, based on the standard packed measurement of 220 grams per cup.
How many cups is 150 grams of brown sugar?
150 grams of brown sugar is about 0.68 cups, based on 220 grams per cup.
Is brown sugar measured packed or loose?
Packed, unless a recipe specifically says otherwise. Packing removes air pockets between the moist sugar crystals, giving a consistent, repeatable measurement.
How do I convert brown sugar grams to cups without a scale?
Divide the gram amount by 220 to get the number of cups, then pack the brown sugar firmly into your measuring cup with the back of a spoon until it holds its shape when turned out.
Final Thoughts
Converting brown sugar grams to cups comes down to one key detail that sets it apart from most other ingredients: it's measured packed, at about 220 grams per cup, not loosely spooned like flour or granulated sugar. Getting the packing right and knowing that light and dark brown sugar convert identically is the difference between a reliable measurement and a recipe that comes out slightly off.
Use the calculator at the top of this page any time you need an instant, accurate conversion for brown sugar, at any gram amount.
1 thought on “Brown Sugar Grams to Cups”