Cups to Grams Converter
Turn cups, spoons and millilitres into grams or ounces for flour, sugar, butter and 70+ other ingredients. Then scale a whole recipe or convert oven temperatures.
Typical: 120 g per US cup, spooned and levelled.
Use this if your bag shows a weight per cup, or you weighed your own cupful.
Fractions are fine: 1 1/2, 1½, ⅓ or 0.75.
Grams use the typical figures and the cup and spoon sizes chosen on the Convert tab.
20 °C is the usual advice in UK and European recipes; US advice is often 25 °F (about 15 °C). Your oven's manual knows best.
How your conversion is worked out
Cups measure space, scales measure weight. The ingredient's density links the two.
- 1
Cups to millilitres
1 cup × 236.6 ml= 236.6 ml
- 2
Typical density
120 g per cup÷ 236.6 ml= 0.507 g/ml
- 3
Millilitres to grams
236.6 ml × 0.507= 120 g
- 4
Your answer
120 g≈ 4.23 oz1 cup = 120 g
Read more: the formula, a worked example, cup sizes, spoon sizes and oven temperatures
The formula
millilitres = amount × millilitres in one of your unit
density (g per ml) = typical grams per US cup ÷ 236.6
grams = millilitres × density
(going the other way: millilitres = grams ÷ density)
Worked example
1 US cup of all-purpose flour: 1 × 236.5882 ml = 236.5882 ml. The typical figure is 120 g per US cup, so the density is 120 ÷ 236.5882 = 0.5072 g per ml. Then 236.5882 × 0.5072 = 120 g (exactly 120 g, because the typical figure is given per US cup). That's 120 ÷ 28.3495 = 4.23 oz.
With a 250 ml metric cup it's 250 × 0.50721 = 126.8 g. Going the other way, 100 g of granulated sugar is 100 ÷ 198 = 0.505 US cups, a level ½ cup.
Typical grams per cup
| Ingredient | 1 US cup | 1 metric cup | 1 US tbsp |
|---|---|---|---|
| All-purpose flour (plain flour) | 120 g | 126.8 g | 7.5 g |
| Bread flour (strong flour) | 120 g | 126.8 g | 7.5 g |
| Whole wheat flour (wholemeal) | 113 g | 119.4 g | 7.1 g |
| Cake flour | 120 g | 126.8 g | 7.5 g |
| Almond flour (ground almonds) | 96 g | 101.4 g | 6 g |
| Granulated sugar (white sugar) | 198 g | 209.2 g | 12.4 g |
| Brown sugar (packed) | 213 g | 225.1 g | 13.3 g |
| Powdered sugar (icing sugar) | 113 g | 119.4 g | 7.1 g |
| Butter | 227 g | 239.9 g | 14.2 g |
| Vegetable oil | 198 g | 209.2 g | 12.4 g |
| Milk | 227 g | 239.9 g | 14.2 g |
| Water | 236.6 g | 250 g | 14.8 g |
| Honey | 336 g | 355 g | 21 g |
| Rolled oats (porridge oats) | 89 g | 94 g | 5.6 g |
| White rice, uncooked | 185 g | 195.5 g | 11.6 g |
| Cocoa powder, unsweetened | 84 g | 88.8 g | 5.3 g |
| Chocolate chips | 170 g | 179.6 g | 10.6 g |
| Table salt | 288 g | 304.3 g | 18 g |
| Baking powder | 192 g | 202.9 g | 12 g |
Typical values for a level cup, spooned in and levelled, mostly from King Arthur Baking's ingredient weight chart; a few the chart doesn't list (atta, besan, ghee, caster sugar, rice, quinoa, lentils, condensed milk) are typical figures from food labels, and water uses 1 g per ml. Real weights change with the brand, how fine it's ground and how you fill the cup. Scooping flour straight from the bag packs in more, so a scale is always the most accurate.
Cup sizes around the world
| Cup | Millilitres | Where it's used |
|---|---|---|
| US customary cup | 236.6 | Most US recipes and websites |
| US legal cup | 240 | US nutrition labels |
| Metric cup | 250 | Australia, New Zealand, Canada, South Africa, many UK recipes |
| Imperial cup | 284.1 | Old British recipes (half an imperial pint) |
| Japanese cup | 200 | Japan (a rice cup is smaller, 180 ml) |
Spoons
A US tablespoon is 14.8 ml (3 teaspoons, 1/16 cup). A metric tablespoon is 15 ml. An Australian tablespoon is 20 ml, which is 4 teaspoons, so Australian recipes need about a third more than a US spoon. A teaspoon is 5 ml (4.93 ml in the US).
Oven temperatures and gas marks
| Gas mark | °F | °C | Fan °C |
|---|---|---|---|
| 1 | 275 | 140 | 120 |
| 2 | 300 | 150 | 130 |
| 3 | 325 | 170 | 150 |
| 4 | 350 | 180 | 160 |
| 5 | 375 | 190 | 170 |
| 6 | 400 | 200 | 180 |
| 7 | 425 | 220 | 200 |
| 8 | 450 | 230 | 210 |
| 9 | 475 | 240 | 220 |
°F = °C × 9 ÷ 5 + 32
°C = (°F − 32) × 5 ÷ 9
gas mark = (°F − 250) ÷ 25, from mark 1 (275 °F) up
The °C column is the rounded figure printed in UK recipes, and the fan column takes off the usual 20 °C. Fan ovens blow hot air around the food, so they cook as if they were hotter; if your oven's manual gives its own advice, follow that.
Tips for scaling a recipe
Spices, salt and raising agents don't always need to grow in a straight line when you make a much bigger batch, so add them a little at a time. Use a bigger tin or bake in batches rather than piling batter deeper, and check bakes a few minutes early. If eggs come out as a fraction, beat them and weigh: a large egg without its shell is about 50 g (typical).
Common questions
How many grams is 1 cup of flour?
One US cup of all-purpose (plain) flour is about 120 g when you spoon it into the cup and level it off. Bread flour is also about 120 g and whole wheat flour about 113 g. A 250 ml metric cup holds about 127 g of plain flour. Scooping straight from the bag packs it down, so weigh it if you can.
How many grams is a cup of sugar?
A US cup of granulated (white) sugar is about 198 g. Packed brown sugar is heavier at about 213 g, and powdered (icing) sugar is much lighter at about 113 g because it is so fine and airy. Caster sugar is close to granulated, about 200 g. These are typical figures; brands differ a little.
How many grams is a cup of butter?
One US cup of butter is about 227 g, which is 8 ounces or two US sticks. So one stick is about 113 g and one US tablespoon of butter is about 14 g (227 ÷ 16). Melted butter weighs the same as solid butter; only the volume changes slightly.
Is a US cup the same as a metric cup?
No. A US cup is 236.6 ml. A metric cup, used in Australia, New Zealand and Canada and in many UK recipes, is 250 ml, about 6% bigger. US nutrition labels use 240 ml, Japan uses 200 ml and old British recipes used a 284 ml imperial cup. Pick the cup your recipe was written with.
What is 180 °C in Fahrenheit and gas mark?
180 °C is 180 × 9 ÷ 5 + 32 = 356 °F, which recipes round to 350 °F, gas mark 4. If you have a fan (convection) oven, the usual advice is to set it about 20 °C lower, so 160 °C. The oven tab does this for any temperature or gas mark.
How many ml is a tablespoon?
A US tablespoon is 14.8 ml and a metric tablespoon is 15 ml, so they are close enough for cooking. An Australian tablespoon is bigger at 20 ml, the same as 4 teaspoons. A teaspoon is 5 ml (4.9 ml in the US). Choose your spoon size in Advanced.
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