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How Much Is 2 Cups of Sunflower Seeds in Ounces?

Converting 2 cups of sunflower seeds to ounces gives 9.88 oz. One cup of sunflower seeds weighs 140g, so 2 cups is 2 × 140 = 280g (9.88 oz). This conversion is specific to sunflower seeds because each ingredient has a different density.

2 cups of sunflower seeds
=
9.88oz
Result using all cup standards info
9.88 oz (US) 10.44 oz (Metric Cup) 11.86 oz (Imperial Cup)
2 cups of sunflower seeds is also
9.88

Formula and Step-by-Step

cups × 140g/cup ÷ 28.3495g/oz = ounces
  1. Start with 2 cups of sunflower seeds
  2. 1 cup of sunflower seeds = 140g
  3. 2 × 140 = 280g
  4. Convert grams to ounces: 280 ÷ 28.3495 = 9.88 oz

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

Measuring Tip

Sunflower seeds are small and pack tightly. Pour them into the measuring cup and level off without shaking, which settles the seeds and increases the weight.

Sunflower Seeds at Different Amounts

How sunflower seeds scales across common cups measurements. Your amount (2 cups) is highlighted.

0.5 cups2.47 oz0.75 cups3.70 oz1 cup4.94 oz1.5 cups7.41 oz2 cups9.88 oz3 cups14.82 oz4 cups19.75 oz5 cups24.69 oz

For reference, 2 cups of sunflower seeds (280g) is close in weight to a can of soup (305g).

Other Amounts of Sunflower Seeds

Cups US Ounces Metric Cup Imperial Cup
0.25 cups 1.23 oz 1.30 oz 1.48 oz
0.33 cups 1.63 oz 1.72 oz 1.96 oz
0.5 cups 2.47 oz 2.61 oz 2.97 oz
0.75 cups 3.70 oz 3.91 oz 4.45 oz
1 cup 4.94 oz 5.22 oz 5.93 oz
1.5 cups 7.41 oz 7.83 oz 8.90 oz
2 cups 9.88 oz 10.44 oz 11.86 oz
3 cups 14.82 oz 15.65 oz 17.79 oz
4 cups 19.75 oz 20.87 oz 23.72 oz
5 cups 24.69 oz 26.09 oz 29.65 oz

Understanding the Units

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.

What is an Ounce?

Ounces are commonly used in US recipes for cheese, meat, chocolate, and other ingredients sold by weight. Many kitchen scales offer both gram and ounce readings.

Frequently Asked Questions

About 9.88 oz, based on sunflower seeds having a density of 140g per cup. The exact amount depends on how the ingredient is measured and the specific product.
Multiply the number of cups by 140 (grams per cup for sunflower seeds), then divide by 28.3495 to convert grams to ounces. For 2 cups: 2 × 140 = 280g, then 280 ÷ 28.3495 = 9.88 oz.
For the most accurate results, weigh sunflower seeds 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: 9.88 oz × 28.3495 = 280g, then 280g ÷ 140 = 2 cups. Or use the Ounces to Cups converter.