GramsToCupsGramsToCups

450 Grams to Cups: Exact Conversion

450 grams doesn't match a typical recipe round number, so the cup equivalent can look like an odd fraction. Of all-purpose flour, 450g is close to 3⅝ cups. Every ingredient below is calculated from its own density, not a shared estimate.

Ingredient
Cup standard
Cups (US Customary)
3.60 (3⅝)
Tablespoons
57.6
Teaspoons
172.8
Milliliters
852 ml

450 Grams to Cups by Ingredient

IngredientGramsCupsFractionTablespoons
Honey450g1.321⅓21.2
Maple Syrup450g1.401⅜22.4
Table Salt450g1.561½25.0
Peanut Butter450g1.741¾27.9
Baking Soda450g1.961⅞31.3
Butter450g1.98231.7
Cream Cheese450g2.00232.0
Brown Sugar450g2.052⅛32.7
Olive Oil450g2.082⅛33.3
Granulated Sugar450g2.252¼36.0
White Rice450g2.432⅜38.9
Chocolate Chips450g2.652⅔42.4
Quinoa450g2.652⅔42.4
Cornstarch450g3.523½56.3
Bread Flour450g3.543½56.7
All-Purpose Flour450g3.603⅝57.6
Powdered Sugar450g3.753¾60.0
Almond Flour450g4.694⅔75.0
Rolled Oats450g5.00580.0
Cocoa Powder450g5.295⅓84.7

Density: Why 450g Gives Different Cup Values

450g of flour and 450g of honey have identical mass, but flour is airy while honey is thick and heavy. That difference in density, not the weight itself, decides how much space each one takes up in a cup. A cup is a fixed volume, so a lighter ingredient needs more of it to reach the same weight, and a heavier ingredient needs less.

This is also why a single all-purpose grams to cups converter can't use one shared number for every ingredient. Each row in the table above is calculated from that ingredient's own density, sourced from USDA FoodData Central where available.

Granulated Sugar

450g ≈ 2¼ cups

Butter

450g ≈ 2 cups

Honey

450g ≈ 1⅓ cup

All-Purpose Flour

450g ≈ 3⅝ cups

Bar chart comparing grams per cup for flour, sugar, and butterFlour125gSugar200gButter227g

How 450g Is Converted, Step by Step

cups = grams ÷ grams per cup

Every value on this page comes from that formula. For all-purpose flour, 125g fills one US cup, so 450g of flour divided by 125 gives 3.60 cups. Tablespoon and teaspoon figures scale from the cup result: 1 cup equals 16 tablespoons and 48 teaspoons, so multiplying the cup value by those factors gives the spoon measurements shown in the converter above.

Sifted: 115g. Scooped and packed: up to 150g. Recipes that specify sifted or packed flour will land on a different cup value even at the same 450g, since sifting and packing change how much air sits between the particles.

Cup Standards: US vs. Metric vs. Imperial

Bar chart comparing US customary, US legal, metric, and imperial cup sizes in millilitersUS Customary236.6mlUS Legal240mlMetric250mlImperial284ml

Not every "cup" holds the same volume. A US customary cup is 236.588ml, a metric cup is 250ml, and an imperial (UK) cup is 284.131ml. That difference shifts the cup count even when the gram amount and the ingredient stay the same.

450g of all-purpose flour: 3⅝ US Customary cups, 3⅜ Metric cups, 3 Imperial (UK) cups.

Use the cup standard switch in the converter above if your recipe was written outside the US.

Getting an Accurate 450g Measurement

Spoon-and-level versus scoop-and-pack measuring methodsSpoon & LevelScoop & PackKitchen Scale
  • Most accurate

    A kitchen scale reads 450g directly and removes scooping error entirely.

  • Dry ingredients

    Spoon the flour into the cup, then level it off with a straight edge. Never scoop directly from the bag — that packs it down and adds extra weight.

  • Liquids

    Pour into a liquid measuring cup and read the line at eye level, not from above.

  • Packed ingredients

    Brown sugar and similar ingredients should be pressed firmly if a recipe calls for a packed cup.

Looking for a specific ingredient instead of the general list above? Search any of the 50+ ingredient pages on the site, such as the all-purpose flour conversion chart, for every common gram amount at once.

Nearby Common Amounts

Frequently Asked Questions

Why isn't 450 grams a clean fraction of a cup?+

Recipes are usually written in round numbers, so 450g falls between common markers. The math still works the same way: divide by the ingredient's grams-per-cup value.

What's a common amount close to 450 grams?+

400g is the nearest round figure most recipes use. See the nearby amounts below if your recipe might actually mean that instead.

How accurate is a 450 gram measurement using cups?+

Cup measurements for dry ingredients can vary by 10 to 20 percent depending on how they're scooped. For a specific amount like 450g, a kitchen scale gives a more reliable result than a measuring cup.

Does the cup size (US, metric, or imperial) change the answer for 450g?+

Yes. 450g of all-purpose flour is about 3⅝ US cups, 3⅜ metric cups, or 3 imperial cups, since each standard defines a different cup volume.