How Much Is 4 Cups of Sunflower Seeds in Ounces?
4 cups of sunflower seeds weighs 19.75 oz. This is based on sunflower seeds having a density of 140g per cup. Because cups measure volume and ounces measure weight, the result depends on the ingredient, and a different ingredient would give a different result for the same 4 cups.
Formula and Step-by-Step
- Start with 4 cups of sunflower seeds
- 1 cup of sunflower seeds = 140g
- 4 × 140 = 560g
- Convert grams to ounces: 560 ÷ 28.3495 = 19.75 oz
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Ground and whole sunflower seeds have different densities. Make sure you are using the form your recipe specifies.
Sunflower Seeds at Different Amounts
How sunflower seeds scales across common cups measurements. Your amount (4 cups) is highlighted.
For reference, 4 cups of sunflower seeds (560g) is close in weight to a bottle of water (500 ml) (510g).
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?
A cup is a US customary unit of volume equal to 236.588 milliliters or 8 fluid ounces. It is the most common volume measurement in American recipes. One cup can be divided into 16 tablespoons or 48 teaspoons.
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.