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How Much Is 1.5 Cups of Whole Wheat Flour in Ounces?

1.5 cups of whole wheat flour equals 6.35 oz. Whole wheat flour has a density of 120g per cup (120g per cup), which means it's relatively light compared to other common cooking ingredients. For comparison, 1.5 cups of honey would be 17.99 oz.

1.5 cups of whole wheat flour
=
6.35oz
Result using all cup standards info
6.35 oz (US) 6.71 oz (Metric Cup) 7.63 oz (Imperial Cup)
1.5 cups of whole wheat flour is also
6.35

Formula and Step-by-Step

cups × 120g/cup ÷ 28.3495g/oz = ounces
  1. Start with 1.5 cups of whole wheat flour
  2. 1 cup of whole wheat flour = 120g
  3. 1.5 × 120 = 180g
  4. Convert grams to ounces: 180 ÷ 28.3495 = 6.35 oz

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.

Whole Wheat Flour at Different Amounts

How whole wheat flour scales across common cups measurements. Your amount (1.5 cups) is highlighted.

0.33 cups1.40 oz0.5 cups2.12 oz0.75 cups3.17 oz1 cup4.23 oz1.5 cups6.35 oz2 cups8.47 oz3 cups12.70 oz4 cups16.93 oz

For reference, 1.5 cups of whole wheat flour (180g) is close in weight to a smartphone (175g).

Other Amounts of Whole Wheat Flour

Cups US Ounces Metric Cup Imperial Cup
0.25 cups 1.06 oz 1.12 oz 1.27 oz
0.33 cups 1.40 oz 1.48 oz 1.68 oz
0.5 cups 2.12 oz 2.24 oz 2.54 oz
0.75 cups 3.17 oz 3.35 oz 3.81 oz
1 cup 4.23 oz 4.47 oz 5.08 oz
1.5 cups 6.35 oz 6.71 oz 7.63 oz
2 cups 8.47 oz 8.95 oz 10.17 oz
3 cups 12.70 oz 13.42 oz 15.25 oz
4 cups 16.93 oz 17.89 oz 20.33 oz
5 cups 21.16 oz 22.36 oz 25.42 oz

Understanding the Units

What is a Cup?

There are three cup standards used worldwide. The US cup (236.588 ml) is used in American recipes. The metric cup (250 ml) is standard in Australia, New Zealand, and some parts of Asia. The imperial cup (284.131 ml) appears in older British and Canadian recipes. A metric cup holds about 5.7% more than a US cup, while an imperial cup holds about 20% more. Using the wrong standard can noticeably affect a recipe.

What is an Ounce?

An ounce (oz) is a US customary unit of weight equal to 28.3495 grams or 1/16 of a pound. In cooking, "ounces" refers to weight (avoirdupois ounces), not fluid ounces which measure volume.

Frequently Asked Questions

About 6.35 oz, based on whole wheat flour having a density of 120g per cup. The exact amount depends on how the ingredient is measured and the specific product.
Multiply the number of cups by 120 (grams per cup for whole wheat flour), then divide by 28.3495 to convert grams to ounces. For 1.5 cups: 1.5 × 120 = 180g, then 180 ÷ 28.3495 = 6.35 oz.
For the most accurate results, weigh whole wheat 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 120 grams per cup. If you dip directly into the flour bag and sweep level, the flour packs tighter and you can end up with 132 to 150 grams per cup instead. This conversion uses the spoon-and-level method, which is the standard most baking references follow.
Reverse the conversion: 6.35 oz × 28.3495 = 180g, then 180g ÷ 120 = 1.5 cups. Or use the Ounces to Cups converter.