450 Grams of Flour to Cups
3⅝ cups in a US cup — and what that looks like with a measuring spoon
450 grams of all-purpose flour is 3⅝ cups in a US cup. In the kitchen that is 3½ cups, 1 tablespoon plus 1¾ teaspoons.
Grams weigh and cups fill, so the answer only exists once you say what is in the cup. A US cup of all-purpose flour weighs 125 g, and every figure on this page comes from that one number.
It also depends on whose cup you mean. In a 250 ml metric cup — the standard in the UK, Australia, New Zealand and Canada — 450 g of all-purpose flour is 3⅜ cups, because that cup holds about 5.7% more than the 236.6 ml US cup.
Round to the nearest measure in a standard cup set — 3½ cups — and you are 12 g under, about 3% of the amount.
450 g of flour in each cup standard
| Cup standard | Size | Grams per cup | Cups |
|---|---|---|---|
| US customary | 236.6 ml | 125 g | 3⅝ |
| Metric (UK, AU, NZ, CA) | 250 ml | 132 g | 3⅜ |
| Imperial (older UK) | 284 ml | 150 g | 3 |
A recipe that says "cups" without saying which one is almost always American. If it came from a British, Australian or New Zealand source, use the metric row.
How to measure 450 g of flour without scales
Spoon the flour into the cup and sweep it level with a knife. Dragging the cup through the bag compacts it, and that cup weighs 140–150 g instead of 125 g — up to 20% more flour than the recipe wanted.
This is plain all-purpose flour. Bread flour packs slightly heavier at 130 g per cup and cake flour lighter at 100 g, so a recipe written for one is not a straight swap by volume.
- Build it as 3½ cups, 1 tablespoon plus 1¾ teaspoons rather than guessing at 3⅝ of a cup.
- 450 g is 57.6 tablespoons of all-purpose flour, at 7.81 g per tablespoon.
- A digital scale removes the question entirely, and costs less than the ingredients it saves.
Nearby amounts of flour
| Grams | US cups | Metric cups | Tablespoons |
|---|---|---|---|
| 400 g | 3¼ | 3 | 51.2 |
| 420 g | 3⅜ | 3⅛ | 53.76 |
| 425 g | 3⅜ | 3¼ | 54.4 |
| 430 g | 3.44 | 3¼ | 55.04 |
| 475 g | 3¾ | 3⅝ | 60.8 |
| 480 g | 3⅞ | 3⅝ | 61.44 |
| 500 g | 4 | 3¾ | 64 |
| 520 g | 4⅛ | 3.94 | 66.56 |
450 g of something else
The same 450 g is a different number of cups for every ingredient, because they do not weigh the same for their size.
| Ingredient | Grams per US cup | US cups |
|---|---|---|
| Sugar | 200 g | 2¼ |
| Butter | 227 g | 2 |
| Water | 237 g | 1⅞ |
| Rice | 185 g | 2⅜ |
450 grams in other units
| Unit | Amount |
|---|---|
| US cups | 3⅝ |
| Tablespoons | 57.6 |
| Teaspoons | 172.8 |
| Ounces (weight) | 15.87 oz |
| Pounds | 0.99 lb |
| Millilitres (volume it fills) | 852 ml |
Frequently asked questions
How many cups is 450 grams of flour?
450 grams of all-purpose flour is 3⅝ cups in a US cup, based on 125 g per cup. A 250 ml metric cup gives 3⅜ cups.
What is the easiest way to measure 450 g of flour?
3½ cups, 1 tablespoon plus 1¾ teaspoons — built from a standard cup and spoon set. Spoon the flour into the cup and sweep it level with a knife. Dragging the cup through the bag compacts it, and that cup weighs 140–150 g instead of 125 g — up to 20% more flour than the recipe wanted.
Is 450 g of flour the same in cups in the UK?
No. A UK, Australian, New Zealand or Canadian metric cup is 250 ml against the US cup's 236.6 ml, so 450 g of all-purpose flour is 3⅜ cups there and 3⅝ cups in the US.
Can I just use 3½ cups instead?
3½ cups of all-purpose flour weighs about 438 g, so you would be 12 g under. For a sauce or a soup that is fine; for a cake, where the flour-to-liquid ratio sets the crumb, weigh it.
How many ounces is 450 grams?
450 grams is 15.87 ounces by weight. Unlike cups, that answer is the same whatever you are measuring — ounces weigh, fluid ounces fill, and they are not the same unit.