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How Much Is 3 Ounces of Walnuts in Cups?

3 ounces of walnuts equals 0.71 cups. Walnuts has a density of 120g per cup. A lighter ingredient like cocoa powder (86g/cup) would fill even more volume at the same weight, which is why ingredient-specific conversions matter.

3 ounces of walnuts
=
0.71cups
Result using all cup standards info
0.71 cups (US) 0.67 cups (Metric Cup) 0.59 cups (Imperial Cup)
0.71

Formula and Step-by-Step

(ounces × 28.35g/oz) ÷ 120g/cup = cups
  1. Start with 3 ounces of walnuts
  2. Convert ounces to grams: 3 × 28.35 = 85.05g
  3. 1 cup of walnuts = 120g
  4. 85.05g ÷ 120g/cup = 0.71 cups

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

Measuring Tip

Chopped, sliced, and whole walnuts have very different weights per measuring cup. Always match the form specified in your recipe.

Walnuts at Different Amounts

How walnuts scales across common ounces measurements. Your amount (3 ounces) is highlighted.

1 oz0.24 cups2 oz0.47 cups3 oz0.71 cups4 oz0.94 cups5 oz1.18 cups6 oz1.42 cups8 oz1.89 cups10 oz2.36 cups

Other Amounts of Walnuts

Ounces US Cups Metric Cup Imperial Cup
1 ounce 0.24 cups 0.22 cups 0.20 cups
2 ounces 0.47 cups 0.45 cups 0.39 cups
3 ounces 0.71 cups 0.67 cups 0.59 cups
4 ounces 0.94 cups 0.89 cups 0.79 cups
5 ounces 1.18 cups 1.12 cups 0.98 cups
6 ounces 1.42 cups 1.34 cups 1.18 cups
8 ounces 1.89 cups 1.79 cups 1.57 cups
10 ounces 2.36 cups 2.24 cups 1.97 cups
12 ounces 2.83 cups 2.68 cups 2.36 cups
16 ounces 3.78 cups 3.58 cups 3.15 cups

Understanding the Units

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.

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.

Frequently Asked Questions

About 0.71 cups, based on walnuts having a density of 120g 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 120 (grams per cup). For 3 ounces: 3 × 28.3495 = 85.05g, then 85.05 ÷ 120 = 0.71 cups.
For the most accurate results, weigh walnuts 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: 0.71 cups × 120g/cup = 85.05g, then 85.05g ÷ 28.3495 = 3 ounces. Or use the Cups to Ounces converter.