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How Much Is 1 Cup of Walnuts in Grams?

1 cup of walnuts weighs 120.00 g. This is based on walnuts having a density of 120g per cup. Because cups measure volume and grams measure weight, the result depends on the ingredient, and a different ingredient would give a different result for the same 1 cup.

1 cup of walnuts
=
120.00g
Result using all cup standards info
120.00 g (US) 126.80 g (Metric Cup) 144.11 g (Imperial Cup)
1 cup of walnuts is also
120.00

Formula and Step-by-Step

cups × 120g/cup = grams
  1. Start with 1 cup of walnuts
  2. 1 cup of walnuts = 120g
  3. 1 × 120 = 120g

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

Mental Math Shortcut

For 1 cup of walnuts, just remember: 120g. Double it for 2 cups (240g), halve it for a half cup (60g).

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.

0.25 cups30 g0.33 cups39.6 g0.5 cups60 g0.75 cups90 g1 cup120 g1.5 cups180 g2 cups240 g3 cups360 g

For reference, 1 cup of walnuts (120g) is close in weight to a bar of soap (113g).

Other Amounts of Walnuts

Cups US Grams Metric Cup Imperial Cup
0.25 cups 30.00 g 31.70 g 36.03 g
0.33 cups 39.60 g 41.84 g 47.56 g
0.5 cups 60.00 g 63.40 g 72.06 g
0.75 cups 90.00 g 95.10 g 108.09 g
1 cup 120.00 g 126.80 g 144.11 g
1.5 cups 180.00 g 190.20 g 216.17 g
2 cups 240.00 g 253.61 g 288.23 g
3 cups 360.00 g 380.41 g 432.34 g
4 cups 480.00 g 507.21 g 576.46 g
5 cups 600.00 g 634.01 g 720.57 g

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 a Gram?

Grams are the preferred unit in professional kitchens and bakeries because they allow exact recipe scaling. To double a recipe, simply double the gram values. No need to worry about how tightly an ingredient is packed into a cup.

Frequently Asked Questions

About 120.00 g, based on walnuts having a density of 120g per cup. The exact amount depends on how the ingredient is measured and the specific product.
Multiply the number of cups by 120 (grams per cup for walnuts). For 1 cup: 1 × 120 = 120.00 g.
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: 120.00 g ÷ 120 = 1 cup. Or use the Grams to Cups converter.