Cups to Grams Converter
Pick an ingredient, type any cup amount — even fractions like 1/2 or 2/3 — and get the exact gram weight instantly. Works in reverse too: grams to cups, with US, metric and UK cup sizes.
Quick table
| Cups | Grams | Ounces |
|---|
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How to Use This Cup to Grams Converter
- Pick your direction. Convert cups to grams, or flip the tabs to convert grams to cups instead.
- Choose an ingredient. Start typing in the ingredient box and pick from 96 ingredients — flours, sugars, dairy, oils, grains and more.
- Type any amount. Whole numbers, decimals and fractions all work: 2, 2.5, 1/2, 1 1/2 or 2/3.
- Read the result instantly. The gram weight appears immediately, with ounces and tablespoons alongside — no button needed.
Why Use a Cups to Grams Converter?
Cups measure volume, but baking rewards weight. A cup of flour and a cup of honey fill the same space yet weigh completely different amounts — 125 g versus 340 g. That gap is exactly why cup measurements fail and gram weights win.
- Bake with repeatable accuracy. Grams remove the guesswork of packed, scooped or sifted cups, so your cake rises the same way every time.
- Scale recipes without fear. Doubling or halving a recipe in cups compounds rounding errors; converting to grams first keeps every ratio exact.
- Cook across US, UK and metric recipes. One tool translates American cup quantities into the gram weights your kitchen scale understands.
- Track nutrition honestly. Calorie and macro counts need real weights — this cup to g converter feeds accurate numbers into any nutrition calculator.
- Save time mid-recipe. No more Googling “1 cup sugar in grams” with flour on your hands; the answer is one tap away.
- Handle any fraction. Awkward amounts like 2/3 cup or 1 1/2 cups convert cleanly instead of forcing mental math at the counter.
Who Is This Cups to Grams Calculator For?
Cups to Grams: The Complete Guide
How many grams are in a cup?
It depends on what fills the cup, because every ingredient has its own density. There is no single answer to “how many grams is one cup” — but the most-searched values are:
- 1 cup all-purpose flour in grams: about 125 g
- 1 cup sugar in grams (granulated): about 200 g
- 1 cup butter in grams: about 227 g
- 1 cup milk in grams: about 245 g
- 1 cup water in grams: about 236 g
Notice the pattern: a cup of fluffy flour weighs barely a third of a cup of dense honey (340 g). Any chart that claims to answer “what is 1 cup in grams” with a single number, without naming the ingredient, is misleading you. This cup to grams converter always pairs the amount with the ingredient — that is the only correct way to convert.
How to convert cups to grams
The method is simple once you know the ingredient’s weight per cup. Multiply your cup amount by the grams in one cup of that ingredient:
grams = cups × grams per cup (of that ingredient)
Worked example: a recipe calls for 2.5 cups of all-purpose flour. One cup of flour weighs 125 g, so 2.5 × 125 = 312.5 g (rounded to 313 g on a kitchen scale). For the reverse — say 400 grams to cups of flour — divide instead: 400 ÷ 125 = 3.2 cups.
Behind the scenes the tool uses the precise formula: cups × 236.588 ml × ingredient density (g/ml). If you switch the cup size to metric (250 ml) or UK imperial (284.1 ml), the gram result scales automatically.
US and UK cup sizes
Not all cups are equal, and this trips up more bakers than any other measurement confusion:
| Cup standard | Volume | Used in |
|---|---|---|
| US cup | 236.588 ml | United States recipes (the default in this converter) |
| Metric cup | 250 ml | Australia, New Zealand, Canada and modern UK recipes |
| UK imperial cup | 284.131 ml | Older British recipes published before the 1960s |
A “cup of flour” can therefore mean 125 g, 132 g or 150 g depending on whose cup you use — a 20% swing. When a recipe’s origin is unclear, the US cup is the safest assumption for American sources. Use the cup-size selector in the tool above to match your recipe exactly.
How much is 1 cup of sugar in grams?
One cup of granulated sugar weighs about 200 grams (7.1 oz). Sugar conversions are among the most searched because sugar appears in nearly every baking recipe:
- 1/4 cup sugar in grams: 50 g
- 1/3 cup sugar in grams: 67 g
- 1/2 cup sugar in grams: 100 g
- 2/3 cup sugar in grams: 133 g
- 3/4 cup sugar in grams: 150 g
- 2 cups sugar in grams: 400 g
Other sugars differ: 1 cup of powdered sugar is only about 120 g (it is aerated and light), while 1 cup of packed brown sugar reaches about 220 g. Always pick the exact sugar in the converter — “sugar” alone is not precise enough.
How much is 1 cup of butter in grams?
One cup of butter weighs about 227 grams — exactly half a US pound (8 oz), which is two standard sticks. Quick butter conversions: 1/2 cup is 114 g (one stick), 1/4 cup is 57 g, and 1 tablespoon is about 14 g.
Butter is one of the few ingredients where cups and grams agree beautifully, because US butter is sold in sticks marked with tablespoon lines. Even so, weighing 227 g on a scale beats cutting a wobbly stick — especially for laminated doughs and pastry where fat ratios decide flakiness.
How much is 1 cup of flour in grams?
One cup of all-purpose flour weighs about 125 grams when spooned lightly into the cup and levelled — the standard baking method. This single number causes the most kitchen disasters, because flour compresses:
- Spooned and levelled: ~125 g per cup (the correct way)
- Scooped directly from the bag: up to ~150 g per cup — 20% extra flour
- Sifted: as little as ~110 g per cup
That 25-gram swing per cup is the difference between tender and tough. Other flours have their own weights: bread flour ~130 g, cake flour ~114 g, whole wheat ~113 g per cup. The converter’s database carries each flour separately so you never have to guess.
How much is 1 cup of milk in grams?
One cup of whole milk weighs about 245 grams. Milk is slightly denser than water (236 g per US cup), so the two are close but not identical. Buttermilk and plain yogurt land at the same ~245 g, while heavy cream is a touch lighter at ~238 g and condensed milk — loaded with sugar — hits ~306 g per cup.
When to convert cups to grams
Reach for gram weights whenever precision matters — and it matters more often than most recipes admit:
- Baking: cakes, bread, macarons and pastry are chemistry; 10 extra grams of flour can ruin a crumb.
- Scaling recipes: converting 2.5 cups to grams before tripling a recipe keeps every ratio intact.
- International recipes: translate American cup measurements into grams your scale understands.
- Nutrition tracking: food labels and diet apps work in grams — convert first, log accurately.
- Sourdough: starter feedings and hydration percentages only make sense as weights; pair this tool with a sourdough calculator for exact ratios.
For rough cooking — soups, stews, sautés — cups are perfectly fine. Convert when the outcome depends on ratios, not vibes.
Going the other way: grams to cups
Sometimes the scale gives you grams and the recipe speaks cups. Flip the tabs above and the same database works in reverse. Common reversals: 400 grams to cups of flour is about 3.2 cups; 400 g of sugar is exactly 2 cups; 400 g of butter is about 1 3/4 cups. The formula simply inverts: cups = grams ÷ grams per cup.
Tips for converting cup measurements
- Spoon, don’t scoop when measuring flour by cup — or better, weigh 125 g and skip the cup entirely.
- Pack brown sugar firmly into the cup; “packed” versus loose changes the weight by 15%.
- Level everything with a straight edge — a heaped cup is not a cup.
- Measure sticky syrups over the bowl or lightly oil the cup first so honey and molasses release fully.
- Check your cup’s origin before converting: US (236.6 ml), metric (250 ml) or old UK imperial (284.1 ml).
- Round sensibly: kitchen scales read whole grams, so 312.5 g becomes 313 g — the tool already rounds this way.
- Convert once, save the recipe with gram weights written in; you will never re-convert the same recipe twice.
Cups to Grams Conversion Table: 96 Ingredients
Every value below is grams per US cup (236.588 ml), spooned-in method — the same database that powers the converter above. Type to filter the table instantly.
| Ingredient | 1 cup | ¾ cup | ⅔ cup | ½ cup | ⅓ cup | ¼ cup | 2 tbsp |
|---|---|---|---|---|---|---|---|
| All-purpose flour | 125 g | 93.8 g | 83.3 g | 62.5 g | 41.7 g | 31.2 g | 15.6 g |
| Bread flour | 130 g | 97.5 g | 86.7 g | 65 g | 43.3 g | 32.5 g | 16.2 g |
| Cake flour | 114 g | 85.5 g | 76 g | 57 g | 38 g | 28.5 g | 14.2 g |
| Whole wheat flour | 113 g | 84.8 g | 75.3 g | 56.5 g | 37.7 g | 28.2 g | 14.1 g |
| Self-raising flour | 125 g | 93.8 g | 83.3 g | 62.5 g | 41.7 g | 31.2 g | 15.6 g |
| Rye flour | 102 g | 76.5 g | 68 g | 51 g | 34 g | 25.5 g | 12.8 g |
| Oat flour | 92 g | 69 g | 61.3 g | 46 g | 30.7 g | 23 g | 11.5 g |
| Almond flour | 96 g | 72 g | 64 g | 48 g | 32 g | 24 g | 12 g |
| Coconut flour | 128 g | 96 g | 85.3 g | 64 g | 42.7 g | 32 g | 16 g |
| Rice flour | 158 g | 118.5 g | 105.3 g | 79 g | 52.7 g | 39.5 g | 19.8 g |
| Buckwheat flour | 120 g | 90 g | 80 g | 60 g | 40 g | 30 g | 15 g |
| Spelt flour | 100 g | 75 g | 66.7 g | 50 g | 33.3 g | 25 g | 12.5 g |
| Chickpea flour | 92 g | 69 g | 61.3 g | 46 g | 30.7 g | 23 g | 11.5 g |
| Cornstarch | 128 g | 96 g | 85.3 g | 64 g | 42.7 g | 32 g | 16 g |
| Tapioca starch | 128 g | 96 g | 85.3 g | 64 g | 42.7 g | 32 g | 16 g |
| Potato starch | 160 g | 120 g | 106.7 g | 80 g | 53.3 g | 40 g | 20 g |
| Semolina | 167 g | 125.2 g | 111.3 g | 83.5 g | 55.7 g | 41.8 g | 20.9 g |
| Cornmeal | 138 g | 103.5 g | 92 g | 69 g | 46 g | 34.5 g | 17.2 g |
| Granulated sugar | 200 g | 150 g | 133.3 g | 100 g | 66.7 g | 50 g | 25 g |
| Caster sugar | 200 g | 150 g | 133.3 g | 100 g | 66.7 g | 50 g | 25 g |
| Powdered sugar | 120 g | 90 g | 80 g | 60 g | 40 g | 30 g | 15 g |
| Brown sugar (packed) | 220 g | 165 g | 146.7 g | 110 g | 73.3 g | 55 g | 27.5 g |
| Light brown sugar (packed) | 213 g | 159.8 g | 142 g | 106.5 g | 71 g | 53.2 g | 26.6 g |
| Demerara sugar | 240 g | 180 g | 160 g | 120 g | 80 g | 60 g | 30 g |
| Coconut sugar | 170 g | 127.5 g | 113.3 g | 85 g | 56.7 g | 42.5 g | 21.2 g |
| Honey | 340 g | 255 g | 226.7 g | 170 g | 113.3 g | 85 g | 42.5 g |
| Maple syrup | 322 g | 241.5 g | 214.7 g | 161 g | 107.3 g | 80.5 g | 40.2 g |
| Golden syrup | 340 g | 255 g | 226.7 g | 170 g | 113.3 g | 85 g | 42.5 g |
| Molasses | 328 g | 246 g | 218.7 g | 164 g | 109.3 g | 82 g | 41 g |
| Agave nectar | 312 g | 234 g | 208 g | 156 g | 104 g | 78 g | 39 g |
| Cocoa powder | 100 g | 75 g | 66.7 g | 50 g | 33.3 g | 25 g | 12.5 g |
| Chocolate chips | 175 g | 131.2 g | 116.7 g | 87.5 g | 58.3 g | 43.8 g | 21.9 g |
| Butter | 227 g | 170.2 g | 151.3 g | 113.5 g | 75.7 g | 56.8 g | 28.4 g |
| Margarine | 230 g | 172.5 g | 153.3 g | 115 g | 76.7 g | 57.5 g | 28.8 g |
| Vegetable oil | 218 g | 163.5 g | 145.3 g | 109 g | 72.7 g | 54.5 g | 27.2 g |
| Olive oil | 216 g | 162 g | 144 g | 108 g | 72 g | 54 g | 27 g |
| Coconut oil | 218 g | 163.5 g | 145.3 g | 109 g | 72.7 g | 54.5 g | 27.2 g |
| Vegetable shortening | 205 g | 153.8 g | 136.7 g | 102.5 g | 68.3 g | 51.2 g | 25.6 g |
| Lard | 205 g | 153.8 g | 136.7 g | 102.5 g | 68.3 g | 51.2 g | 25.6 g |
| Ghee | 218 g | 163.5 g | 145.3 g | 109 g | 72.7 g | 54.5 g | 27.2 g |
| Whole milk | 245 g | 183.8 g | 163.3 g | 122.5 g | 81.7 g | 61.2 g | 30.6 g |
| Skimmed milk | 246 g | 184.5 g | 164 g | 123 g | 82 g | 61.5 g | 30.8 g |
| Buttermilk | 245 g | 183.8 g | 163.3 g | 122.5 g | 81.7 g | 61.2 g | 30.6 g |
| Heavy cream | 238 g | 178.5 g | 158.7 g | 119 g | 79.3 g | 59.5 g | 29.8 g |
| Sour cream | 230 g | 172.5 g | 153.3 g | 115 g | 76.7 g | 57.5 g | 28.8 g |
| Plain yogurt | 245 g | 183.8 g | 163.3 g | 122.5 g | 81.7 g | 61.2 g | 30.6 g |
| Greek yogurt | 280 g | 210 g | 186.7 g | 140 g | 93.3 g | 70 g | 35 g |
| Cream cheese | 232 g | 174 g | 154.7 g | 116 g | 77.3 g | 58 g | 29 g |
| Ricotta cheese | 246 g | 184.5 g | 164 g | 123 g | 82 g | 61.5 g | 30.8 g |
| Cottage cheese | 210 g | 157.5 g | 140 g | 105 g | 70 g | 52.5 g | 26.2 g |
| Condensed milk | 306 g | 229.5 g | 204 g | 153 g | 102 g | 76.5 g | 38.2 g |
| Evaporated milk | 252 g | 189 g | 168 g | 126 g | 84 g | 63 g | 31.5 g |
| Water | 236 g | 177 g | 157.3 g | 118 g | 78.7 g | 59 g | 29.5 g |
| Lemon juice | 244 g | 183 g | 162.7 g | 122 g | 81.3 g | 61 g | 30.5 g |
| Orange juice | 248 g | 186 g | 165.3 g | 124 g | 82.7 g | 62 g | 31 g |
| Apple juice | 248 g | 186 g | 165.3 g | 124 g | 82.7 g | 62 g | 31 g |
| Vinegar | 238 g | 178.5 g | 158.7 g | 119 g | 79.3 g | 59.5 g | 29.8 g |
| Soy sauce | 240 g | 180 g | 160 g | 120 g | 80 g | 60 g | 30 g |
| Rolled oats | 90 g | 67.5 g | 60 g | 45 g | 30 g | 22.5 g | 11.2 g |
| Quick oats | 90 g | 67.5 g | 60 g | 45 g | 30 g | 22.5 g | 11.2 g |
| Steel-cut oats | 170 g | 127.5 g | 113.3 g | 85 g | 56.7 g | 42.5 g | 21.2 g |
| Uncooked white rice | 185 g | 138.8 g | 123.3 g | 92.5 g | 61.7 g | 46.2 g | 23.1 g |
| Uncooked brown rice | 195 g | 146.2 g | 130 g | 97.5 g | 65 g | 48.8 g | 24.4 g |
| Cooked rice | 158 g | 118.5 g | 105.3 g | 79 g | 52.7 g | 39.5 g | 19.8 g |
| Couscous (uncooked) | 173 g | 129.8 g | 115.3 g | 86.5 g | 57.7 g | 43.2 g | 21.6 g |
| Quinoa (uncooked) | 170 g | 127.5 g | 113.3 g | 85 g | 56.7 g | 42.5 g | 21.2 g |
| Cornflakes | 28 g | 21 g | 18.7 g | 14 g | 9.3 g | 7 g | 3.5 g |
| All-bran cereal | 62 g | 46.5 g | 41.3 g | 31 g | 20.7 g | 15.5 g | 7.8 g |
| Whole almonds | 143 g | 107.2 g | 95.3 g | 71.5 g | 47.7 g | 35.8 g | 17.9 g |
| Sliced almonds | 92 g | 69 g | 61.3 g | 46 g | 30.7 g | 23 g | 11.5 g |
| Ground almonds | 96 g | 72 g | 64 g | 48 g | 32 g | 24 g | 12 g |
| Chopped walnuts | 117 g | 87.8 g | 78 g | 58.5 g | 39 g | 29.2 g | 14.6 g |
| Chopped pecans | 108 g | 81 g | 72 g | 54 g | 36 g | 27 g | 13.5 g |
| Peanuts | 146 g | 109.5 g | 97.3 g | 73 g | 48.7 g | 36.5 g | 18.2 g |
| Hazelnuts | 135 g | 101.2 g | 90 g | 67.5 g | 45 g | 33.8 g | 16.9 g |
| Cashews | 130 g | 97.5 g | 86.7 g | 65 g | 43.3 g | 32.5 g | 16.2 g |
| Pistachios (shelled) | 123 g | 92.2 g | 82 g | 61.5 g | 41 g | 30.8 g | 15.4 g |
| Desiccated coconut | 93 g | 69.8 g | 62 g | 46.5 g | 31 g | 23.2 g | 11.6 g |
| Raisins | 145 g | 108.8 g | 96.7 g | 72.5 g | 48.3 g | 36.2 g | 18.1 g |
| Dried cranberries | 120 g | 90 g | 80 g | 60 g | 40 g | 30 g | 15 g |
| Table salt | 288 g | 216 g | 192 g | 144 g | 96 g | 72 g | 36 g |
| Fine sea salt | 273 g | 204.8 g | 182 g | 136.5 g | 91 g | 68.2 g | 34.1 g |
| Kosher salt | 240 g | 180 g | 160 g | 120 g | 80 g | 60 g | 30 g |
| Baking powder | 220 g | 165 g | 146.7 g | 110 g | 73.3 g | 55 g | 27.5 g |
| Baking soda | 220 g | 165 g | 146.7 g | 110 g | 73.3 g | 55 g | 27.5 g |
| Instant yeast | 150 g | 112.5 g | 100 g | 75 g | 50 g | 37.5 g | 18.8 g |
| Active dry yeast | 150 g | 112.5 g | 100 g | 75 g | 50 g | 37.5 g | 18.8 g |
| Ground cinnamon | 128 g | 96 g | 85.3 g | 64 g | 42.7 g | 32 g | 16 g |
| Ground cumin | 120 g | 90 g | 80 g | 60 g | 40 g | 30 g | 15 g |
| Paprika | 120 g | 90 g | 80 g | 60 g | 40 g | 30 g | 15 g |
| Peanut butter | 258 g | 193.5 g | 172 g | 129 g | 86 g | 64.5 g | 32.2 g |
| Tomato paste | 262 g | 196.5 g | 174.7 g | 131 g | 87.3 g | 65.5 g | 32.8 g |
| Ketchup | 240 g | 180 g | 160 g | 120 g | 80 g | 60 g | 30 g |
| Mayonnaise | 230 g | 172.5 g | 153.3 g | 115 g | 76.7 g | 57.5 g | 28.8 g |
| Fruit jam | 320 g | 240 g | 213.3 g | 160 g | 106.7 g | 80 g | 40 g |
| Beaten egg | 243 g | 182.2 g | 162 g | 121.5 g | 81 g | 60.8 g | 30.4 g |
Values are practical kitchen approximations cross-checked against USDA FoodData Central, King Arthur Baking and standard culinary references. For the most critical bakes, weigh your own cup once and use that number.
Frequently Asked Questions
How many grams is one cup?
It depends on the ingredient, because a cup measures volume and a gram measures weight. One cup of all-purpose flour weighs about 125 grams, one cup of granulated sugar about 200 grams, one cup of butter about 227 grams, and one cup of water about 236 grams. Always convert with the ingredient specified — there is no universal “1 cup in grams” number.
What is 1 cup of sugar in grams?
One cup of granulated sugar weighs about 200 grams (7.1 oz). Related conversions: half a cup of sugar is 100 g, a quarter cup is 50 g, and two-thirds of a cup is about 133 g. Note that powdered sugar is much lighter at roughly 120 g per cup, and packed brown sugar is heavier at about 220 g per cup.
How do I convert 1/2 cup to grams?
Multiply half a cup by the ingredient’s weight per cup. Half a cup of butter is about 114 g, half a cup of sugar is 100 g, half a cup of flour is about 63 g, and half a cup of milk is about 123 g. Type “1/2” directly into the converter above — it understands fractions.
How many cups is 400 grams?
It depends on the ingredient: 400 grams of all-purpose flour is about 3.2 cups, 400 grams of granulated sugar is exactly 2 cups, 400 grams of butter is about 1¾ cups, and 400 grams of honey is about 1.2 cups. Use the Grams → Cups tab above with your ingredient selected for an exact answer.
Is 1 cup equal to 250 grams?
No — not generally. One US cup of water weighs about 236 g and one metric cup (250 ml) of water weighs 250 g, but flour, sugar, butter and every other ingredient weigh something different per cup. “1 cup = 250 g” is only true for water-like liquids measured in a metric cup.
What is the difference between US, metric and UK cups?
A US cup holds 236.588 ml, a metric cup (used in Australia, New Zealand, Canada and modern UK recipes) holds 250 ml, and the old UK imperial cup holds 284.131 ml. Because of this, “one cup of flour” can mean 125 g, 132 g or 150 g depending on the cup — use the cup-size selector in the tool to match your recipe.
How accurate are cup to gram conversions?
Within a few percent for most ingredients, provided the measuring method matches. Flour is the big exception: scooping the cup through the bag can pack in 15–20% more flour than spooning it in lightly. For everyday cooking the chart values are plenty accurate; for competition-level baking, weigh your own cup of the ingredient once and use that figure.