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Aug 21, 2007 12:51 PM

Converting Ounces to Cups

Many thanks to anyone who can help me with this. I have a recipe which lists sugar and cake flour in ounces. As I don't have a scale, I need to convert to cups/tablespoons. Does anyone know the proper conversion rates. I've tried conversion charts but haven't found this particular conversion (solid ounces).

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  1. I usually use the Joy of Baking website as a reference.

    Granulated sugar
    1 cup = 200 grams (7 ounces)

    Cake Flour:
    1 cup = 130 grams (about 4.6 ounces)
    1 cup sifted = 100 grams (about 3.5 ounces)

    I know the sugar conversion is good. I actually weighed a cup a sugar and it was 200 grams. The flour covernsion I haven't verified.

      1. 1 cup = 8 fluid ounces = 236.6 or about 250 ml = 16 tablespoons

        1Tablespoon = 14.79 or about 15 ml

        1 Reply
        1. re: Sam Fujisaka

          But that's liquid measure and OP's asking about dry ingredients. For liquid, I still use the ditty "a pint's a pound the world around." But that's not true at all, is it ? :)

        2. You can't really convert them. A cup of sugar doesn't weigh the same as a cup of flour. The density is different. You can get an inexpensive kitchen scale (I'm talking around $5) at stores like Target, Bed Bath and Beyond, Walmart, etc. I've even seen them at some drug stores.

          2 Replies
          1. re: boogiebaby

            This is a real problem with recipes in imperial measurements. How do you know when an ounce is fluid or weight? I prefer metric which leaves no doubt.

            Sugar and cake are likely in fluid ounces i.e. cups. In that case, follow Sam's directions 8 oz = 1 cup.

            1. re: ceebee1

              Dry ingredients aren't normally measured in fluid ounces though. Fluid ounces are for liquids like milk, oil, etc. In the US, we measure liquids with fluid ounces or cups and dry ingredients by cups or pounds. In the rest of the world (mostly), they use grams to measure dry ingredients and millileters to measure liquids.

          2. From threads on these boards, the consensus standard is 1 cup of flour = 4.5 ounces.