Updated for 2026.
Introduction
Here is the sweetest simple fact in baking math: grams granulated sugar to cups converts at exactly 200 grams per US cup. No decimals, no fractions, no fuss. One hundred grams is half a cup, fifty is a quarter, and the pattern holds all the way up.
But sugar has a sneaky side. Say “sugar” without specifying the type and the answer swings from 120 grams (powdered) to 220 grams (packed brown) per cup. In this guide you’ll learn the exact conversion for every sugar variety, how to handle the tricky ones, and the mistakes that turn desserts from delightful to disastrous.
In this guide you’ll learn:
- The 200-gram anchor for granulated sugar and how to use it
- Gram-per-cup values for 7 sugar types
- Quick answers: 200 g, 250 g, 100 g, and 50 g in cups
- Why brown and powdered sugar need special handling
Table of Contents
- [Grams Granulated Sugar to Cups: The Core Conversion](#grams-granulated-sugar-to-cups-the-core-conversion)
- [Grams to Cups Sugar: Every Type Compared](#grams-to-cups-sugar-every-type-compared)
- [How Much Is 200 Gm in Cups? (And 250 Gm)](#how-much-is-200-gm-in-cups-and-250-gm)
- [Sugar Conversion Mistakes That Ruin Desserts](#sugar-conversion-mistakes-that-ruin-desserts)
- [Baking With Sugar by Weight](#baking-with-sugar-by-weight)
- [Frequently Asked Questions](#frequently-asked-questions)
- [Conclusion](#conclusion)
Grams Granulated Sugar to Cups: The Core Conversion
Quick Answer: Grams granulated sugar to cups converts at 200 grams per US cup. Divide any gram amount by 200: 100 g is 1/2 cup, 50 g is 1/4 cup, 400 g is 2 cups. This 200-gram anchor is the cleanest conversion in all of baking.
“Grams granulated sugar to cups” refers to the weight-to-volume conversion for standard white granulated sugar using the US cup (236.588 ml). It is defined as division by 200, the number of grams in one cup. Among common baking ingredients, granulated sugar has the tidiest conversion math, which is why bakers often learn it first.
The Beautiful 200-Gram Anchor
Most conversions produce awkward decimals. Sugar gives you round numbers: 200, 100, 50, 25. This happens because granulated sugar crystals pack with remarkable consistency, so the density barely varies between brands or bags. According to King Arthur Baking’s ingredient weight chart, one US cup of granulated sugar weighs 200 grams as of 2026, and that figure has been stable across every edition of their chart.
And here is a practical bonus: because the math is so clean, you can convert sugar in your head faster than any app can load.
Grams to Cups Sugar: Every Type Compared
Quick Answer: Per US cup: granulated 200 g, caster (superfine) 200 g, powdered 120 g (sifted), brown sugar 220 g (packed), turbinado/raw 200 g, demerara 200 g, coconut sugar 160 g. Only the type changes the number.
| Sugar Type | 1 Cup (g) | 1/2 Cup (g) | 1/4 Cup (g) | Notes |
|---|---|---|---|---|
| Granulated (white) | 200 | 100 | 50 | The anchor; most consistent |
| Caster / superfine | 200 | 100 | 50 | Dissolves faster, same weight |
| Powdered (confectioners) | 120 | 60 | 30 | Sifted; contains cornstarch |
| Brown sugar (packed) | 220 | 110 | 55 | Must be firmly packed |
| Turbinado / raw | 200 | 100 | 50 | Coarse crystals, same as white |
| Demerara | 200 | 100 | 50 | Large crystals, rich flavor |
| Coconut sugar | 160 | 80 | 40 | Varies by brand; check package |
Granulated, Caster, and Raw: The 200-Gram Family
Granulated, caster, turbinado, and demerara sugars all land at 200 g per cup despite looking quite different. Crystal size affects how fast sugar dissolves, not how much fits in the cup, because the packing efficiency barely changes. So when a recipe calls for caster sugar and you only have granulated, convert with the same 200-gram value and adjust nothing else.
Powdered Sugar: Light as Air
Powdered sugar weighs just 120 g per sifted cup because grinding sugar into dust traps enormous amounts of air, and the added cornstarch keeps it fluffy. Never substitute it 1:1 for granulated by volume: one cup of powdered sugar delivers 80 fewer grams of actual sweetening power. By weight, though, the swap works fine if you account for the cornstarch.
Brown Sugar: Pack It or Perish
Brown sugar is the only common sugar where technique changes the conversion. Loosely spooned, a cup holds about 180 g; firmly packed, 220 g. Recipes universally assume packed, so press it down until it holds the cup’s shape when turned out. If your brown sugar has hardened into a brick, by the way, that is a storage problem, not a conversion problem.
Pair this with our converter grams to cups flour when a recipe lists both dry ingredients in grams.
How Much Is 200 Gm in Cups? (And 250 Gm)
How Much Is 200 Gm in Cups?
Exactly 1 cup of granulated sugar. This is the conversion to memorize first because it anchors everything else. Two hundred grams of powdered sugar, by contrast, is 1.67 cups, and 200 g of packed brown sugar is 0.91 cups. Same grams, different sugars, different answers.
How Much Is 250 Gm in Cups?
1.25 cups of granulated sugar, or 1 cup plus 1/4 cup. For powdered sugar, 250 g equals 2.08 cups; for packed brown sugar, 1.14 cups. Notice how the “simple” 250 g question has three different answers hiding inside it.
The 4-Step Sugar Conversion
- Identify your exact sugar type (granulated, powdered, brown, or other).
- Find its grams-per-cup from the table above.
- Divide your gram amount by that number.
- Round to the nearest practical fraction (quarters work for nearly everything).
Pro Tip: When a recipe lists “200 g sugar” with no type specified, assume granulated white sugar. It is the default in American, British, and professional recipes unless the author says otherwise. When in doubt, the recipe’s country of origin confirms it.
Q: Can I convert sugar without knowing the type? A: Only for granulated, which is the safe default. For any other sugar, the type changes the answer by up to 45 percent, so guessing the type is worse than guessing the math. Check the recipe context: frostings mean powdered, cookies often mean brown.
Sugar Conversion Mistakes That Ruin Desserts
Mistake 1: Swapping Powdered for Granulated by Volume
One cup of powdered sugar (120 g) swapped for one cup of granulated (200 g) removes 80 g of sugar from the recipe. Frostings turn runny, meringues refuse to stiffen. Swap by weight instead: 200 g of powdered sugar for 200 g of granulated, and the structure holds.
Mistake 2: Unpacked Brown Sugar
A loosely filled cup of brown sugar holds around 180 g instead of 220 g. In chocolate chip cookies, that missing 40 g means less moisture, less chew, and more spread. Pack it firmly enough that it keeps the cup’s shape.
Mistake 3: Forgetting Sugar Affects More Than Sweetness
Sugar is structural: it tenderizes crumb, holds moisture, and drives browning. A conversion error does not just make cake less sweet; it makes it drier, paler, and tougher. Treat sugar conversions with the same respect you give flour.
The Sweetener Ladder is our framework for keeping every sweetener straight: arrange them by grams per cup from lightest to heaviest (powdered 120, granulated 200, packed brown 220, honey 340). Before finalizing any substitution, check which rung you are on. Moving up or down the ladder without adjusting the amount is the single most common sweetener mistake in home baking.
Q: Why did my caramel crystallize? Could conversion be the cause? A: Possibly. Caramel depends on exact sugar-to-water ratios, and a 40-gram brown sugar packing error shifts that ratio enough to cause crystallization. For candy and caramel, weigh sugar always; cups are not precise enough.
Baking With Sugar by Weight
Why Professionals Weigh Sugar
Pastry kitchens work exclusively in grams because sugar’s behavior (hygroscopy, caramelization points, crystalline structure) responds to exact quantities. A professional formula might call for 180 g of sugar to hit a precise 60% baker’s percentage relative to flour. Cups cannot express that relationship; grams can.
Honestly, once you bake with a scale for a month, going back to cups feels like navigating with a paper map. The scale is simply calmer.
Converting Old Family Recipes
Grandmother’s “2 cups sugar” becomes 400 g of granulated sugar, and writing that number on the recipe card is a gift to the next generation. Well, more precisely, it is a gift that also future-proofs the recipe against every cup-standard debate. Convert once, write it down, and never wonder again.
Round out the recipe with how many grams in a cup of butter and how many grams in a cup of honey when those ingredients appear alongside sugar. For everything in one place, the baking ingredient conversions hub covers all sugar types instantly.
Frequently Asked Questions
How many grams of sugar are in a cup?
200 grams of granulated sugar per US cup. Powdered sugar is 120 g per sifted cup, and firmly packed brown sugar is 220 g. The type of sugar changes the answer significantly, so always confirm which sugar your recipe means.
How much is 200 gm of sugar in cups?
Exactly 1 cup of granulated sugar. For powdered sugar, 200 g equals 1.67 cups, and for packed brown sugar it equals 0.91 cups. The 200-gram-equals-1-cup shortcut only applies to granulated (and similar crystal) sugars.
How much is 250 gm of sugar in cups?
1.25 cups of granulated sugar (1 cup plus 1/4 cup). The same 250 g becomes 2.08 cups of powdered sugar or 1.14 cups of packed brown sugar. When a recipe just says “sugar,” use the granulated value.
Can I substitute powdered sugar for granulated sugar?
By weight, yes (with a small texture change from the cornstarch). By volume, no: one cup of powdered sugar weighs only 120 g versus 200 g for granulated. To substitute properly, weigh out the same grams of powdered sugar as the granulated sugar the recipe calls for.
Why is my brown sugar conversion always off?
Because brown sugar must be firmly packed to reach 220 g per cup, and most people pack it loosely (around 180 g). Press it down with the back of a spoon until it holds its shape. If it is rock-hard from storage, microwave it 20 seconds with a damp paper towel first.
How many cups is 100g of sugar?
Half a cup of granulated sugar, exactly. For powdered sugar, 100 g is 0.83 cups (a scant cup), and for packed brown sugar it is 0.45 cups (just under half). Small amounts like this are where weighing beats measuring most clearly.
Does the brand of sugar affect the conversion?
Barely. Granulated sugar is so consistent that brand differences shift the per-cup weight by only 1 to 2 grams. Brown and powdered sugars vary slightly more due to moisture and milling differences, but still within a few grams. Brand matters far less than type and technique.
Conclusion
Sugar conversions reward one habit above all: naming the sugar before doing the math. Granulated sugar’s beautiful 200-gram anchor makes it the easiest conversion in baking, while powdered (120 g) and packed brown (220 g) demand their own numbers. Memorize the Sweetener Ladder, pack your brown sugar firmly, and weigh when precision counts.
Ready for instant answers? Our baking ingredient conversions hub converts every sugar type in seconds.