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How Much Is 20.11 Ounces of Cake Flour in Cups?

20.11 ounces of cake flour equals 5.00 cups. Cake flour has a density of 114g per cup. A lighter ingredient like cocoa powder (86g/cup) would fill even more volume at the same weight, which is why ingredient-specific conversions matter.

20.11 ounces of cake flour
=
5.00cups
Result using all cup standards info
5.00 cups (US) 4.73 cups (Metric Cup) 4.16 cups (Imperial Cup)
5.00

Formula and Step-by-Step

(ounces × 28.35g/oz) ÷ 114g/cup = cups
  1. Start with 20.11 ounces of cake flour
  2. Convert ounces to grams: 20.11 × 28.35 = 570.11g
  3. 1 cup of cake flour = 114g
  4. 570.11g ÷ 114g/cup = 5.00 cups

The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.

Measuring Tip

Different flour types have very different weights per cup. Always check the specific flour your recipe calls for rather than using a generic "flour" conversion.

Cake Flour at Different Amounts

How cake flour scales across common ounces measurements. Your amount (20.11 ounces) is highlighted.

4 oz0.99 cup5 oz1.24 cups6 oz1.49 cups8 oz1.99 cups10 oz2.49 cups12 oz2.98 cups16 oz3.98 cups20.11 oz5.00 cups

Other Amounts of Cake Flour

Ounces US Cups Metric Cup Imperial Cup
1 ounce 0.25 cups 0.24 cups 0.21 cups
2 ounces 0.50 cups 0.47 cups 0.41 cups
3 ounces 0.75 cups 0.71 cups 0.62 cups
4 ounces 0.99 cup 0.94 cups 0.83 cups
5 ounces 1.24 cups 1.18 cups 1.04 cups
6 ounces 1.49 cups 1.41 cups 1.24 cups
8 ounces 1.99 cups 1.88 cups 1.66 cups
10 ounces 2.49 cups 2.35 cups 2.07 cups
12 ounces 2.98 cups 2.82 cups 2.48 cups
16 ounces 3.98 cups 3.77 cups 3.31 cups
20.11 ounces 5.00 cups 4.73 cups 4.16 cups

Understanding the Units

What is an Ounce?

Weight ounces and fluid ounces are different measurements. A fluid ounce measures volume (29.574 ml), while an ounce measures weight (28.35g). They only align for water, where 1 fl oz weighs approximately 1 oz.

What is a Cup?

The US cup (236.588 ml) is slightly smaller than the metric cup used in Australia and some other countries (250 ml). When following recipes from different countries, check which cup standard is being used.

Frequently Asked Questions

About 5.00 cups, based on cake flour having a density of 114g per cup. The exact amount depends on how the ingredient is measured and the specific product.
First convert ounces to grams (1 ounce = 28.3495g), then divide by 114 (grams per cup). For 20.11 ounces: 20.11 × 28.3495 = 570.11g, then 570.11 ÷ 114 = 5.00 cups.
For the most accurate results, weigh cake flour on a kitchen scale. If measuring by volume, sift or whisk first to break up clumps, then spoon into the measuring cup and level off. Do not scoop directly from the bag.
Yes, quite a bit. If you spoon the flour into your measuring cup and level it off, you will get about 114 grams per cup. If you dip directly into the flour bag and sweep level, the flour packs tighter and you can end up with 125.4 to 142.5 grams per cup instead. This conversion uses the spoon-and-level method, which is the standard most baking references follow.
Reverse the conversion: 5.00 cups × 114g/cup = 570.11g, then 570.11g ÷ 28.3495 = 20.11 ounces. Or use the Cups to Ounces converter.