Cups to Grams Converter

A cup of flour and a cup of honey are the same volume and very different weights. Pick the ingredient, enter the amount, and get grams from a published reference, with the source shown for every number.

1 cup of all-purpose flour

120 g

4.23 oz

1 cup of all-purpose flour = 120 g (spooned into the cup and leveled, not scooped). Source: King Arthur Baking Ingredient Weight Chart.

Cups to grams chart

Grams for common US cup and spoon measures, level and not packed unless noted. The last column says where each cup weight comes from.

Grams per US cup measure by ingredient, with sources
Ingredient1 cup3/4 cup2/3 cup1/2 cup1/3 cup1/4 cup1 tbspSource
All-purpose flourSpooned into the cup and leveled, not scooped120 g90 g80 g60 g40 g30 g7.5 gKing Arthur Baking
Bread flourSpooned and leveled120 g90 g80 g60 g40 g30 g7.5 gKing Arthur Baking
Whole wheat flourSpooned and leveled113 g85 g75 g57 g38 g28 g7.1 gKing Arthur Baking
Almond flour96 g72 g64 g48 g32 g24 g6 gKing Arthur Baking
Granulated sugar198 g149 g132 g99 g66 g50 g12 gKing Arthur Baking
Brown sugarPacked213 g160 g142 g107 g71 g53 g13 gKing Arthur Baking
Powdered (confectioners') sugarUnsifted113 g85 g75 g57 g38 g28 g7.1 gKing Arthur Baking
Cocoa powder, unsweetened84 g63 g56 g42 g28 g21 g5.3 gKing Arthur Baking
Cornstarch112 g84 g75 g56 g37 g28 g7 gKing Arthur Baking
Rolled oats (old-fashioned)89 g67 g59 g45 g30 g22 g5.6 gKing Arthur Baking
Chocolate chips170 g128 g113 g85 g57 g43 g11 gKing Arthur Baking
Butter2 US sticks227 g170 g151 g114 g76 g57 g14 gUSDA FoodData Central
White rice, long-grain, uncooked198 g149 g132 g99 g66 g50 g12 gKing Arthur Baking
Honey339 g254 g226 g170 g113 g85 g21 gUSDA FoodData Central
Milk, whole244 g183 g163 g122 g81 g61 g15 gUSDA FoodData Central
Water237 g178 g158 g119 g79 g59 g15 gUS cup definition (NIST)
Vegetable oil198 g149 g132 g99 g66 g50 g12 gKing Arthur Baking

Cup weights are the published figures. Fractional measures are calculated from them and rounded to the nearest gram (to 0.1 g under 10 g).

How to use the converter

  1. Choose the ingredient from the list.
  2. Enter the amount as a whole number, decimal or fraction (1, 0.5, 3/4 or 1 1/2) and pick cups, tablespoons or teaspoons.
  3. Read the weight in grams, with ounces underneath. Switch to Grams to cups to go the other way, for example when a European recipe lists flour in grams and you only have measuring cups.

Where the numbers come from

Every cup weight on this page comes from one of two published references, and the table above names the one used for each ingredient:

King Arthur Baking's chart is used for flour, sugar, cocoa, oats, cornstarch, chocolate chips, vegetable oil and uncooked rice. Fill the cup gently and level it to match those figures (pack brown sugar firmly). USDA FoodData Central household portion weights are used for butter, honey and whole milk, and water uses the US cup's defined volume. Values are not averaged, and an ingredient is only listed when its source gives a cup weight for it. Every value was checked against its source on October 14, 2026.

Volume is never as precise as weight. Two people filling the same cup can be several grams apart, so if a recipe gives grams, a kitchen scale will always be more reliable than either a cup or this conversion. For volume-to-volume conversions (cups to milliliters, tablespoons to teaspoons), see the measurement conversions cheat sheet.

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