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How Much Is 20.88 Ounces of Flaxseed in Cups?

20.88 ounces of flaxseed equals 4.00 cups. That's 591.94g, and Flaxseed has a density of 148g per cup. Because ounces measure weight and cups measure volume, the result depends on the ingredient's density.

20.88 ounces of flaxseed
=
4.00cups
Result using all cup standards info
4.00 cups (US) 3.79 cups (Metric Cup) 3.33 cups (Imperial Cup)
4.00

Formula and Step-by-Step

(ounces × 28.35g/oz) ÷ 148g/cup = cups
  1. Start with 20.88 ounces of flaxseed
  2. Convert ounces to grams: 20.88 × 28.35 = 591.94g
  3. 1 cup of flaxseed = 148g
  4. 591.94g ÷ 148g/cup = 4.00 cups

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

Measuring Tip

Ground and whole flaxseed have different densities. Make sure you are using the form your recipe specifies.

Flaxseed at Different Amounts

How flaxseed scales across common ounces measurements. Your amount (20.88 ounces) is highlighted.

4 oz0.77 cups5 oz0.96 cups6 oz1.15 cups8 oz1.53 cups10 oz1.92 cups12 oz2.30 cups16 oz3.06 cups20.88 oz4.00 cups

Other Amounts of Flaxseed

Ounces US Cups Metric Cup Imperial Cup
1 ounce 0.19 cups 0.18 cups 0.16 cups
2 ounces 0.38 cups 0.36 cups 0.32 cups
3 ounces 0.57 cups 0.54 cups 0.48 cups
4 ounces 0.77 cups 0.73 cups 0.64 cups
5 ounces 0.96 cups 0.91 cups 0.80 cups
6 ounces 1.15 cups 1.09 cups 0.96 cups
8 ounces 1.53 cups 1.45 cups 1.28 cups
10 ounces 1.92 cups 1.81 cups 1.59 cups
12 ounces 2.30 cups 2.18 cups 1.91 cups
16 ounces 3.06 cups 2.90 cups 2.55 cups
20.88 ounces 4.00 cups 3.79 cups 3.33 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?

In US cooking, a cup measures volume, not weight. One standard US cup holds 236.588 ml of liquid. Because different ingredients have different densities, a cup of one ingredient can weigh very differently from a cup of another.

Frequently Asked Questions

About 4.00 cups, based on flaxseed having a density of 148g 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 148 (grams per cup). For 20.88 ounces: 20.88 × 28.3495 = 591.94g, then 591.94 ÷ 148 = 4.00 cups.
For the most accurate results, weigh flaxseed on a kitchen scale. If measuring by volume, spoon the ingredient into the measuring cup and level it off with a straight edge rather than scooping directly.
Weight-per-cup values vary because of differences in how the ingredient is measured (spooned vs scooped), grind size, moisture content, and settling during storage. Our values use standardized measurement methods from established culinary references.
Reverse the conversion: 4.00 cups × 148g/cup = 591.94g, then 591.94g ÷ 28.3495 = 20.88 ounces. Or use the Cups to Ounces converter.