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Cups to Grams Cheat Sheet

A no-drama guide to converting cups to grams for the ingredients you actually use, with quick tables, accuracy tips, and a simple way to do the math when you need it.

Author By Matt Campbell
4.8
A set of metal measuring cups beside a digital kitchen scale on a bright home kitchen counter, with a small bowl of flour nearby
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If you’ve ever followed a recipe that says 1 cup flour and ended up with a cookie that spreads like it is trying to escape the pan, welcome. Cups are convenient, but they can also be chaotic because a cup of flour can mean a lot of different weights depending on how you scoop it.

Grams are the calm friend in the kitchen. They are consistent, they make scaling recipes easy, and they save you from the “why is this dough so dry” spiral. Below is a converter-style cheat sheet plus a simple formula for odd amounts.

Bowls of flour, sugar, and cocoa powder arranged on a kitchen counter with measuring spoons and a whisk

Why It Works

  • More consistent results: Weight-based measuring removes the biggest variable in baking.
  • Faster prep: One bowl on a scale means fewer measuring cups to wash.
  • Easy scaling: Double a recipe without doing fraction math while your butter melts.
  • Better texture: Especially for cakes, muffins, cookies, and bread where flour changes everything.

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Storage Tips

This one is a “recipe” you store in your brain or save to your bookmarks.

  • Save it: Bookmark this page and keep it open when baking.
  • Print it: Print the page or jot your top three conversions on a card for your baking drawer.
  • Scale habit: Keep your kitchen scale in an easy-to-grab spot. If it lives in a cabinet behind the slow cooker, you will not use it.

Common Questions

Common cups to grams conversions

Because ingredient density varies, the most reliable approach is to convert by ingredient type, not just “1 cup equals X grams.” These are the conversions I reach for the most.

Quick accuracy note: All cup-to-gram numbers are estimates based on a standard US cup and typical measuring methods. Brands, humidity, and how you pack or scoop can shift weights. When a recipe really matters, a scale wins.

Flour (all-purpose)

  • 1 cup = 120 g
  • 3/4 cup = 90 g
  • 2/3 cup = 80 g
  • 1/2 cup = 60 g
  • 1/3 cup = 40 g
  • 1/4 cup = 30 g

Note: Different sources range from 120 to 125 g per cup depending on measuring method. I use 120 g because it lines up with the spoon-and-level method and can help prevent dryness in baked goods.

Other flours (quick baselines)

  • Bread flour: 1 cup = 120 to 125 g (spooned and leveled)
  • Cake flour: 1 cup = 110 to 115 g (sifted, then spooned and leveled)
  • Whole wheat flour: 1 cup = 120 to 130 g (spooned and leveled)

Tip: If a recipe is flour-heavy (bread, pizza dough, sandwich loaves), weigh it. Flour is the ingredient most likely to swing your results.

Granulated sugar

  • 1 cup = 200 g
  • 1/2 cup = 100 g
  • 1/3 cup = 67 g
  • 1/4 cup = 50 g

Brown sugar (packed)

  • 1 cup = 215 g
  • 1/2 cup = 108 g
  • 1/3 cup = 72 g
  • 1/4 cup = 54 g

Tip: If the recipe says “packed,” press it into the cup. If you are using a scale, you can skip the packing drama and just weigh it.

Powdered sugar

  • 1 cup sifted = 110 to 120 g
  • 1 cup unsifted = 120 to 130 g
  • 1/2 cup = 55 to 65 g
  • 1/4 cup = 28 to 33 g

Note: Powdered sugar is extra sensitive to sifting and settling. If your recipe says “sifted,” measure after sifting (or just weigh).

Butter

  • 1 cup = 227 g
  • 1/2 cup = 113 g (1 stick)
  • 1/4 cup = 57 g
  • 1 tablespoon = 14 g

Vegetable or canola oil

  • 1 cup = 220 g
  • 1/2 cup = 110 g
  • 1/4 cup = 55 g

Note: Depending on brand and temperature, you may see 218 to 224 g per cup. 220 g is a solid everyday target.

Honey

  • 1 cup = 340 g
  • 1/2 cup = 170 g
  • 1/4 cup = 85 g

Milk and water

  • 1 cup water = 236 to 240 g
  • 1 cup milk = 240 to 245 g

Note: “1 cup = 240 g” is reliably true for water (give or take rounding). Other liquids vary with density. Milk varies slightly by fat percentage, but for most baking, 240 to 245 g per cup is close enough.

Salt (because it gets tricky fast)

  • Table salt: 1 teaspoon = about 6 g
  • Kosher salt: 1 teaspoon = about 3 to 5 g (brand matters a lot)

Tip: If a recipe lists salt by volume and you swap brands, taste and texture can change. When you can, weigh salt.

Baking powder and baking soda

  • Baking powder: 1 teaspoon = about 4 g
  • Baking soda: 1 teaspoon = about 5 g

Why cups to grams is different for every ingredient

A cup is a volume measurement. Grams are a weight measurement. A cup of feathers and a cup of rocks are both a cup, but they obviously do not weigh the same. Ingredients work the same way: flour is fluffy, sugar is dense, cocoa is clingy, and oats are basically tiny boats full of air.

Do I really need a scale?

You do not need one, but if you bake even a couple times a month, a basic digital scale is the biggest quality-of-life upgrade you can make. It is cheaper than a fancy pan and saves more recipes than a pep talk ever will.

What is the most accurate flour conversion?

For all-purpose flour, use 120 g per cup for most American-style recipes. If your recipe is from a bread-focused author or uses a European style, you might see 125 g per cup. If your dough looks dry, do not panic. Hold back 10 to 15% of the flour next time and add as needed.

Is a cup the same everywhere?

This guide assumes a US cup: 236.6 ml (often rounded to 237 ml). Some countries use a 250 ml metric cup. If you are using a metric-cup recipe, weights are your best friend because they remove the guesswork completely.

Source note: These conversions align with common baking references (including major flour brands and baking textbooks), but your best “source” is still your scale in your kitchen.

Flour being sifted into a mixing bowl on a kitchen counter with a sieve and measuring spoon nearby

I went to school thinking I would do the whole culinary-degree route, but the real lessons showed up in actual kitchens and in my own apartment when I was trying to bake something decent after a long day. The first time I switched a cookie recipe from cups to grams, it felt like turning on the lights. Same ingredients, same oven, suddenly way fewer surprises. Now I keep a scale out on the counter because I would rather be a little chaotic on flavor than chaotic on measurements.