Cups to Grams Converter
Turn cups, tablespoons and teaspoons into grams, or grams back into cups, for 27 baking ingredients. Pick the cup size your recipe was written for and see a typical weight with a realistic range
Your Conversion
1 cup = 236.6 ml · 1 tbsp = 14.8 ml · 1 tsp = 4.9 ml
Fractions work: type 1/2, 1 1/3 or 1½. Decimals with a dot or comma are fine too.
The weight from your recipe, in grams
| Measure | Typical | Range |
|---|---|---|
| ¼ cup | 30 g | 28–33 g |
| ⅓ cup | 40 g | 37–43 g |
| ½ cup | 60 g | 55–65 g |
| ⅔ cup | 80 g | 73–87 g |
| ¾ cup | 90 g | 83–98 g |
| 1 cup | 120 g | 110–130 g |
| 1 tbsp | 7.5 g | 6.9–8.1 g |
| 1 tsp | 2.5 g | 2.3–2.7 g |
An estimate: the same cup of an ingredient can weigh a few percent more or less depending on how it is filled. For exact baking, weigh it. Flour spooned into the cup and leveled weighs less than flour scooped straight from the bag; scooping can push a cup above the typical value.
How to use this tool
- Choose the direction: cups or spoons to grams, or grams to cups and spoons.
- Pick the ingredient. Flour, sugar, butter, honey, oats, cocoa and three kinds of salt are listed by group.
- Choose the cup size your recipe was written for. A US blog usually means the US customary cup; a European or Australian recipe usually means 250 ml.
- Type the amount (fractions such as 1 1/2 work) and the unit, or tap a quick fraction. The result shows a typical weight and a likely range, plus a table of common measures for the same ingredient.
Worked example
A recipe calls for 1 1/3 cups of all-purpose flour, US customary. That is 1.333 × 236.6 ml = 315 ml. At a typical 120 g per US cup the tool gives 160 g (5.64 oz), with a likely range of 147–173 g. Going the other way, 250 g of granulated sugar with a 250 ml metric cup is about 1.18 cups, or 19.7 tablespoons.
Methodology
Cups and spoons measure volume; grams measure mass. To move between them the tool needs the density of the specific ingredient: grams = volume (ml) × density (g/ml). The volume comes from the amount you enter times the size of the unit under the standard you choose, for example one US customary cup is 236.588 ml and a tablespoon is one sixteenth of it. Going from grams to cups divides by the density instead. Flour at a typical 120 g per US cup has a density of about 0.51 g/ml, honey about 1.42 g/ml, and water 1 g/ml, which is why one cup of each weighs so differently. Because density is stored per ml, switching the cup standard changes the weight in proportion to the cup volume, not the ingredient.
One cup, nine ingredients: how different the grams are
One US customary cup (236.6 ml) and one tablespoon of nine common ingredients, exactly as the tool converts them. Same volume, very different weights; salt shows the widest gap.
| Ingredient | 1 cup | 1 tbsp | Likely range per cup |
|---|---|---|---|
| All-purpose flour | 120 g | 7.5 g | 110–130 g |
| Granulated sugar | 200 g | 12.5 g | 190–213 g |
| Brown sugar (packed) | 213 g | 13.3 g | 202–224 g |
| Butter | 227 g | 14.2 g | 213–230 g |
| Honey | 336 g | 21 g | 325–347 g |
| Rolled oats | 90 g | 5.6 g | 81–113 g |
| Table salt (fine) | 288 g | 18 g | 284–292 g |
| Kosher salt, Diamond Crystal | 128 g | 8 g | 120–135 g |
| Kosher salt, Morton | 256 g | 16 g | 243–269 g |
A real-life case. Carla, in Curitiba, bakes banana bread from a US blog: 2 cups of flour, ¾ cup of sugar and ½ cup of butter. Her xícara de chá holds 200 ml, not 236.6 ml. Measured with it, she would weigh out about 203 g of flour (the recipe means 240 g), 127 g of sugar (150 g) and 96 g of butter (114 g): every ingredient 15.5% short, and the loaf comes out dense and dry. In the converter she picks “US customary cup”, enters 2, ¾ and ½, and gets 240 g, 150 g and 114 g to put on the scale. This is an estimate for information only.
Gear for Weighing & Storing Ingredients
Three kitchen helpers that make recipes in grams easy to follow
Etekcity Digital Kitchen Scale, Grams and Ounces, 11 lb, Tare Function, Stainless Steel
A scale that reads in grams and ounces with a tare button, so you can weigh straight into the bowl and skip the cup guesswork. Stainless steel platform, 5 kg (11 lb) capacity.
Stainless Steel Measuring Cups and Spoons Set, 10 Pieces
Nesting measuring cups and spoons in stainless steel. Useful for recipes that still use cups: fill the measure and level it with a knife for repeatable results.
Vtopmart Airtight Food Storage Containers with Lids, 24 pcs, Black
Twenty-four airtight containers with lids and labels for flour, sugar, pasta and cereal. BPA free and dishwasher safe (lids excluded), in several sizes.
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Frequently asked questions
How many grams is one cup of flour? ▼
For all-purpose flour the tool uses 120 g per US customary cup, with a likely range of 110–130 g. King Arthur Baking publishes 120 g, while USDA household-measure data lists 125 g, and a cup scooped straight from the bag can weigh more than one spooned in and leveled. If your recipe gives grams, use those instead of any conversion.
Why does my cup give a different weight than an American recipe? ▼
Because “cup” is not one size. A US customary cup is 236.6 ml, the US nutrition-label cup is 240 ml, a metric cup is 250 ml, and a Japanese or Brazilian xícara de chá is 200 ml. The same “1 cup” of flour is about 101 g in a 200 ml cup and 127 g in a 250 ml cup. Choose the standard your recipe was written for.
Should I trust these grams or use a scale? ▼
Use the result as a well-grounded estimate and a scale for anything delicate. Cups are a volume measure, and packing, sifting and humidity change what ends up in them. The range shown reflects that spread. For bread, cakes and pastry, weighing is more repeatable than any cup conversion.
Why do the two kosher salts convert so differently? ▼
Crystal shape changes how much salt fits in a spoon. In the tool, one tablespoon of Diamond Crystal is about 8 g and Morton about 16 g, while fine table salt is about 18 g. Swapping them by volume can double or halve the salt in a recipe, so match the brand named in the recipe or weigh the salt.
Can I convert grams back into cups? ▼
Yes. Switch to “Grams → cups / spoons”, pick the ingredient and standard, and enter the weight. You get the volume in cups (as a kitchen fraction when it is close to one), tablespoons, teaspoons and milliliters, plus a range, because a denser pack means fewer cups for the same grams.