How Many Calories In Cup Of Sugar? | Sweet Facts Guide

Calories In One Cup Of Sugar: Accurate Conversions

Let’s clear up the kitchen math with numbers you can trust. One level US cup of white granulated sugar weighs about 200 g. At ~387 kcal per 100 g, that lands right around 774 kcal per cup. The weight figure and nutrient density come from the same dataset used by dietitians and food labels, which is why you’ll see the same totals across credible charts and calculators (USDA FoodData Central).

Different styles of sugar change the math. Packed brown sugar is heavier by volume because the molasses makes the crystals stick together. Sifted powdered sugar is lighter and airy, so a cup brings fewer calories than a cup of granulated. That’s why recipes call out “packed” or “sifted”—those words affect energy, texture, and sweetness.

Quick Reference Table (By Sugar Type)

This table collects standard cup weights and the matching calorie totals you’ll meet in cookbooks and nutrition databases.

Sugar Type	Calories Per Cup	Typical Cup Weight
Granulated (white)	≈774 kcal	≈200 g
Brown (packed)	≈829–853 kcal	≈220–225 g
Powdered (sifted)	≈389 kcal	≈100 g

Those ranges reflect common measuring styles at home. Scooping straight from the bag often compacts crystals, which nudges the weight higher and the calories up. Leveling the cup with a flat edge keeps things closer to the chart.

When you start planning desserts or drinks, it helps to translate that cup into teaspoons and tablespoons so the serving math lines up with what you actually eat. A teaspoon of white sugar weighs about 4 g. That teaspoon comes out near 16 kcal. Three teaspoons make a tablespoon, so you’re at ~49 kcal. It adds up fast in sweetened coffee, lemonade, and glazes.

Why Cup Weights Differ Across Sugars

Crystal size, moisture, and air pockets change how much fits in a measuring cup. Granulated sugar packs fairly predictably. Brown sugar holds molasses, so it compresses and weighs more per scoop when “packed.” Powdered sugar includes anticaking starch and traps air; sifting fluffs it up, which drops the grams per cup and trims the calorie total.

Recipe Notes That Affect Calorie Counts

• “Packed” vs. “unpacked”: Pressing brown sugar down can swing the weight by dozens of grams per cup.
• “Sifted” vs. “unsifted”: Sifting powdered sugar reduces density; a sifted cup often weighs about half of an unsifted cup.
• Moisture and storage: Clumpy sugar measures heavier; dry, free-flowing sugar measures lighter.

Health Context In Plain Terms

Energy from table sugar is pure carbohydrate. Per nutrition databases, a 200 g cup delivers about 200 g of carbs and zero protein or fat. Public-health guidance suggests capping added sugars to a smaller slice of daily energy—less than 10% of calories for ages 2+ in the current Dietary Guidelines, and an even tighter 6% target in recommendations from heart-health groups (Dietary Guidelines summary at CDC; AHA added sugars advice).

If you bake often, a small tweak—reducing a recipe’s sugar by 5–10%—rarely changes structure but can trim dozens of calories per slice. Swapping some sugar for fruit purees in quick breads cuts energy and adds moisture. Frostings are where powdered sugar stacks up; weighing the bowl is the most reliable way to manage portions.

Teaspoon, Tablespoon, And Cup: Kitchen Math That Works

Here’s the practical ladder most cooks use: 1 teaspoon ≈ 4 g ≈ 16 kcal. 1 tablespoon = 3 teaspoons ≈ 12–13 g ≈ 49–52 kcal. 1 standard cup = 16 tablespoons ≈ ~200 g ≈ 774 kcal for white granulated. These are average values that match the same dataset used on nutrition labels.

Everyday Uses And What They Add

• Coffee or tea: Two teaspoons add ~32 kcal per mug.
• Lemonade pitcher (½ cup sugar): ~387 kcal across the batch; divide by servings.
• Frosting (3 cups powdered sugar, sifted): ~1,167 kcal from the sugar alone; spread across a cake yields fewer per slice.

Method: Where The Numbers Come From

All calorie figures in this guide align with the same database used by dietitians and food labels. The nutrient density for table sugar is ~387 kcal per 100 g, and common measures pair that with standard weights for a cup, tablespoon, and teaspoon. You can view a public entry that shows the selectable serving sizes—including “1 cup (200 g)”—on a respected aggregator that sources directly from the government dataset (USDA FoodData Central (via MyFoodData)).

For health guidance, this article leans on widely adopted recommendations that cap added sugars as a slice of total daily energy, not as a blanket ban. For a typical 2,000-kcal day, the 10% cap comes to ~200 kcal, or around 12 teaspoons of sugar, across both foods and drinks.

Calorie Check By Measure (Granulated)

Use this quick table for recipe scaling or portion planning at the counter.

Measure	Approx. Grams	Approx. Calories
1 teaspoon	≈4 g	≈16 kcal
1 tablespoon	≈12–13 g	≈49–52 kcal
1 cup	≈200 g	≈774 kcal

Granulated vs. Brown vs. Powdered: Which One Fits Your Goal?

Granulated (White)

Reliable for cookies, quick breads, and syrups. It dissolves predictably, caramelizes well, and gives the cleanest sweetness. When a recipe just says “sugar,” this is the usual pick.

Brown (Packed)

Good for chewy cookies and sauces. The little bit of molasses brings moisture and a deeper taste. Per cup, the energy count is higher because packing increases grams, not because each gram carries more energy than white.

Powdered (Confectioners’)

Ideal for glazes and buttercreams. A cup measures lighter if sifted, which is why icing recipes can swing a lot in sweetness and texture. Sifting keeps clumps out and improves control.

Smart Ways To Trim Calories Without Wrecking Texture

• Weigh your sugar: A $10 scale saves headaches. Matching grams to the recipe beats guessing with a packed cup.
• Cut 5–10%: Many batters bake just fine with a slight reduction. Start small and taste.
• Balance with fruit: Bananas, applesauce, or dates can replace a portion of the sugar in quick breads and muffins.
• Focus on beverages: Sweet drinks stack energy quickly. Halving the spoonfuls is an easy win.

Label Tips: Where “Added Sugars” Show Up

Packaged foods must list both total sugars and the added part. That line helps you count what comes from sweeteners versus fruit or milk. The labeling guide lines up with the same daily cap used in national recommendations (Added Sugars on the Nutrition Facts Label).

When A Cup Really Means Something Else

Baking books sometimes use “scant” or “heaping.” Those aren’t standardized, so the grams—and the energy—can swing more than you expect. If the dessert needs precision, weigh it. If you’re just sweetening a sauce, a rounded tablespoon won’t make or break it; just be aware it can nudge the total up.

Putting It All Together

Use the tables as a baseline. Translate cups to grams when you can. Save the higher-calorie styles—like packed brown—for recipes that need their flavor. In everyday drinks, teaspoons matter more than you’d think.

If you’re planning a week’s menu, it helps to know your daily added sugar limit so these numbers fit your day, not just your recipe card.

Want a structured way to trim energy while keeping treats? Try our calorie deficit guide for step-by-step math.