How Much Is 1 Cup of Walnuts in Ounces?
1 cup of walnuts equals 4.23 oz. Walnuts 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 cup of honey would be 11.99 oz.
Formula and Step-by-Step
- Start with 1 cup of walnuts
- 1 cup of walnuts = 120g
- 1 × 120 = 120g
- Convert grams to ounces: 120 ÷ 28.3495 = 4.23 oz
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
When a recipe says "1 cup nuts, chopped" vs "1 cup chopped nuts," the first means measure whole then chop. The second means chop first then measure. The weight difference can be significant.
Walnuts at Different Amounts
How walnuts scales across common cups measurements. Your amount (1 cup) is highlighted.
For reference, 1 cup of walnuts (120g) is close in weight to a bar of soap (113g).
Other Amounts of Walnuts
| 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?
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.
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.