Bob's Red Mill Flour Weight Chart
Baking 101, Learning Center on on June 19 2019 by Whitney Barnes

Bob's Red Mill Flour Weight Chart

For best results in baking, we recommend that you weigh the ingredients with a digital scale. With a plethora of different flour varieties out there, we’ve created a flour weight chart for easy reference in baking.

What is the weight of 1 cup of flour?

Well I'm so glad you asked! Our most popular flour, Organic Unbleached White All Purpose Flour, weighs 136 grams per 1 cup.  All of our flours have a slightly different weight per cup because of their varying density and particle size. The amount of flour that fits into 1 cup depends largely on how big the particles are. If it's a coarser grind, like our Hazelnut Flour, less flour fits in a cup and therefore weighs less per cup - only 112 grams. If it's a super fine grind, like Sweet White Rice Flour, more flour fits into a cup and will weigh more - 204 grams! Baking is a science and the seemingly insignificant differences can result in big changes in the final product. As more and more home cooks bake by weight versus volume, having a handy flour weight chart will be a indispensable tool. In our newer recipes, we've started to include volume and weight measurements for all ingredients.

How do you measure flour?

The correct way to measure out flour is to spoon it into a measuring cup then use the flat side of a knife or other straight edged utensil to level the flour across the cup, sweeping the excess back into the flour bin. Do not pack the flour into the cup or scoop directly from the bag as both methods can lead to incorrect measurements. If using a scale, place a bowl on the scale, tare the scale, then spoon flour into the bowl until you reach the desired weight.

Wheat Flour Weight Chart

Flour Type grams per 1/4 cup grams per 1 cup
Artisan Bread Flour 36 144
Barley Flour 30 120
Graham Flour 30 120
Organic Dark Rye Flour 30 120
Organic Graham Flour 30 120
Organic Kamut Flour 30 120
Organic Spelt Flour 30 120
Organic Unbleached White AP Flour 34 136
Organic Whole Wheat Pastry Flour 30 120
Organic Whole Wheat Flour 38 152
Semolina Flour 42 168
Spelt Flour 30 120
Unbleached White AP Flour 34 136
Unbleached White Pastry Flour 34 136
Vital Wheat Gluten Flour 30 120
Whole Wheat Flour 38 152
Whole Wheat Pastry Flour 30 120

Gluten Free Flour Weight Chart

Flour Type grams per 1/4 cup grams per 1 cup
Almond Flour 28 112
Arrowroot Starch 36 144
Brown Rice Flour 40 160
Cassava Flour 35 140
Corn Flour 29 116
Corn Starch 32 128
Garbanzo Bean Flour 30 120
Garbanzo and Fava Bean Flour 30 120
Gluten Free 1-to-1 Baking Flour 37 148
Gluten Free All Purpose Baking Flour 34 136
Gluten Free Corn Flour 31 124
Gluten Free Oat Flour 30 120
Hazelnut Flour 28 112
Masa Harina Corn Flour 31 124
Millet Flour 30 120
Natural Almond Flour 26 104
Oat Flour 30 120
Organic Amaranth Flour 30 120
Organic Buckwheat Flour 30 120
Organic Brown Rice Flour 40 160
Organic Coconut Flour 28 128
Organic Corn Flour 31 124
Organic Quinoa Flour 28 112
Organic Soy Flour 28 112
Organic White Rice Flour 40 160
Paleo Baking Flour 23 92
Potato Flour 45 180
Potato Starch 48 192
Sorghum Flour 34 136
Soy Flour 28 112
Sweet White Rice Flour 51 204
Tapioca Flour/Starch 30 120
Teff Flour 41 164
White Rice Flour 40 160


  1. Renee
    Hi.If plain white flour is 120g per cup but the 1-1 gf baing flour is 148g per cup,do I bake by weights or cups? And then !-1 baking flour isn't really a cup for cup replacement because of the weight difference?
    1. Whitney Barnes
      Whitney Barnes
      Hi Renee - Yes, our Gluten Free 1-to-1 Baking Flour (148 grams per 1 cup) is heavier by weight because the blend of flours have different densities in comparison to Organic All Purpose Unbleached White Flour (136 grams per 1 cup). If baking by volume, it is a 1:1 or cup for cup replacement - no additional changes necessary. If baking by weight and converting a wheat recipe into a gluten free recipe, just keep in mind that a cup of our Gluten Free 1-to-1 Baking Flour is heavier than Organic All Purpose Unbleached White Flour by 12 grams and increase your measurement accordingly.

      If you have more baking questions please feel free to contact Customer Service at 1-800-349-2173 or [email protected]
  2. Michael Kane
    I bought a case of your Unbleached Superfine Cake Flour. How many grams of that, unsifted, is in a cup? By unsifted, I mean poured from the bag into the scale. Thanks!
    1. Whitney Barnes
      Whitney Barnes
      1 cup of our Superfine Cake Flour would be 136 grams.
    2. Michael Kane
      Thanks for the reply, Whitney. 136g is what the bag says, 1/4 cup = 34g x 4 = 136. I did a few tests, pouring unsifted cake flour into a cup, leveling it, then weighing it and every time it was 130g. That is why I posted here, actually. A competitor’s brand of cake flour, available at most every store in a box, says 1 cup of their unsifted cake flour is 130g. I bought a case of Bob’s cake flour because I thought it would be better, and more efficient than 1 box at a time. I’m going to use 130g per cup of your cake flour a couple more times and see how things turn out.
  3. Becca
    Hello! Why is your Unbleached White AP Flour 136 grams in a cup, but King Arthur says 120? It's really hard to convert a receipt to weight when I'm using bulk flour and I can't find sources that agree on how many grams there are in a cup of unbleached all purpose flour. Can you help?
    1. Whitney Barnes
      Whitney Barnes
      Hi Becca, we base our weights on our products specifically. A great discrepancy in flour weight can also be a result of measuring technique. We recommend aerating your flour (a light whisking) then spooning the flour into the measuring cup and sweeping away the excess.
  4. valerie
    my husband has been diagnosed with celiac disease so I'm starting to bake gluten free but I'm getting conflicting information i want to know how much gluten free flour weighs one site states that all gluten free flour weighs 140 gram per 1 cup of gluten free flour another site states different weighs for different types of gluten free flour. help please
    1. Whitney Barnes
      Whitney Barnes
      Hi Valerie, you can refer to this post to see how many grams are in a cup of each flour. As you can see in the chart, each flour has a slightly different weight. This is because they are milled from different grains, each with varying density.
  5. J. S.
    Hi, does ¼ cup equal to 4 tablespoons. I need to use 1 tablespoon of vital wheat gluten in my recipe. Would that be 7.5 gm since ¼ cup of vital wheat gluten here equals 30gm
    1. Whitney Barnes
      Whitney Barnes
      Hi! Yes, 1/4 cup is equivalent to 4 tablespoons when measuring by volume.

      1 tbsp of Vital Wheat Gluten weighs 7.5 grams and 1/4 cup (4 tbsp) weighs 30 grams.
  6. rick barwick
    Could you please give me a simple formula for adding vital whole wheat gluten to increase the protein content of the flowers step-by-step would be appreciated I'm not very good with math also why is Italian double zero flour high in protein but low in gluten that's my understanding I do artisan bread and pizza a lot and rye bread I just ordered the patent King Arthur patent flour from baker's Authority but I do like your product thank you
    1. Sarena Shasteen
      Hi Rick! That's a great question. We have a recipe specialist on staff that can help you with this. You can reach her at [email protected] or call 800-349-2173.
  7. Richard L. Dort
    How about adding this info on the product bags?
    1. Whitney Barnes
      Hi Richard, you can always look at the nutritional panel to find the weight (in grams) of a cup. Typically the serving size is 1/4 cup, but can vary depending on the flour. Just multiply the gram weight of a serving by the appropriate amount to get the 1 cup equivalent. Happy baking!
  8. Bea
    I am using 1:1 flour to make a loaf of no knead bread. The chart indicates that I need 444 grams of flour for the 3 cups required in the recipe. This makes for an extremely dry mixture - no "wet dough" is created. Do I need to adjust anything? It's barely malleable and does not form a ball. Please advise. Thank you.
    1. Whitney Barnes
      Hi Bea - gluten free flour behaves differently than wheat flour. It sounds like the gluten free flour has absorbed all the liquid and you will likely need to add more.

      We have a great recipe for gluten free no knead bread using our Gluten Free All Purpose Flour. Here's a link!

      Gluten Free No-Knead Bread Recipe
  9. Joe
    I'm measuring one cup of oat flour at 93 grams with one measuring cup, and 90 grams with a different measuring cup. Your chart indicates that the weight should be 120 grams. I followed the instructions to spoon the flour into the measuring cup and level with a straight edge. Can you help me understand what I'm doing wrong? Thanks!
    1. Whitney Barnes
      Hi Joe! Hm, it sounds like you're doing everything right. Our Recipe Specialist may be able to assist further - reach them directly at [email protected]
  10. Barbara Kay French
    Barbara Kay French
    Commenting on the person who was getting different weights with different measuring cups. I watched an evaluation of measuring cups on a television show. Sadly not all cups are accurate. If you have an accurate weight for the product you are using, work with the weight.
  11. Connie
    Hi, If I am replacing 1 1/2 cup of whole wheat flour with brown rice flour, how do I figure out how much rice flour to use? Thank you
    1. Whitney Barnes
      Hi Connie - I'd recommend replacing it by volume; use 1 1/2 cups of Brown Rice Flour.
  12. Denise Jones
    I have cake flour and pastry flour I want to use up but I don't plan to make cakes etc. How can I use them in bread, pasta or pancake recipes?
    1. Whitney Barnes
      Hi Denise - both of those are lower protein flours; they would work best in pancakes or quick breads. Enjoy!
  13. Charlie
    Speaking to "how much does one cup of flour weigh?" The simple answer is that it gets complicated. There are many articles dedicated to this question. After calling King Arthur Flour, and reading a number of articles concerning this question (google it), I believe the answer is "depends on who you ask". Everyone seems to use similar technique to answer this question, but it is an experiment to arrive at a close approximation. The final answer is to use the value given in the recipe. It apparently worked for the recipe writer.

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