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How Much Is 2 Cups of Onions (Diced) in Grams?

2 cups of onions (diced) equals 320.00 g. Onions (diced) has a density of 160g per cup (160g per cup), which means it's moderate weight compared to other common cooking ingredients. For comparison, 2 cups of all-purpose flour would be 250.32 g.

2 cups of onions (diced)
=
320.00g
Result using all cup standards info
320.00 g (US) 338.14 g (Metric Cup) 384.30 g (Imperial Cup)
2 cups of onions (diced) is also
320.00

Formula and Step-by-Step

cups × 160g/cup = grams
  1. Start with 2 cups of onions (diced)
  2. 1 cup of onions (diced) = 160g
  3. 2 × 160 = 320g

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

Mental Math Shortcut

Quick check: 2 cups is just double the single-cup weight. 1 cup = 160g, so 2 = 320g.

Measuring Tip

Raw and cooked produce have very different weights per cup. Cooked vegetables shrink and become denser. These conversions are for raw produce.

Onions (Diced) at Different Amounts

How onions (diced) scales across common cups measurements. Your amount (2 cups) is highlighted.

0.5 cups80 g0.75 cups120 g1 cup160 g1.5 cups240 g2 cups320 g3 cups480 g4 cups640 g5 cups800 g

For reference, 2 cups of onions (diced) (320g) is close in weight to a can of soup (305g).

Other Amounts of Onions (Diced)

Cups US Grams Metric Cup Imperial Cup
0.25 cups 40.00 g 42.27 g 48.04 g
0.33 cups 52.80 g 55.79 g 63.41 g
0.5 cups 80.00 g 84.54 g 96.08 g
0.75 cups 120.00 g 126.80 g 144.11 g
1 cup 160.00 g 169.07 g 192.15 g
1.5 cups 240.00 g 253.61 g 288.23 g
2 cups 320.00 g 338.14 g 384.30 g
3 cups 480.00 g 507.21 g 576.46 g
4 cups 640.00 g 676.28 g 768.61 g
5 cups 800.00 g 845.35 g 960.76 g

Understanding the Units

What is a Cup?

There are three cup standards used worldwide. The US cup (236.588 ml) is used in American recipes. The metric cup (250 ml) is standard in Australia, New Zealand, and some parts of Asia. The imperial cup (284.131 ml) appears in older British and Canadian recipes. A metric cup holds about 5.7% more than a US cup, while an imperial cup holds about 20% more. Using the wrong standard can noticeably affect a recipe.

What is a Gram?

A gram (g) is a metric unit of mass equal to 1/1000 of a kilogram. It is the standard weight measurement for precise baking worldwide. Professional bakers prefer grams because they are more accurate than volume measurements.

Frequently Asked Questions

About 320.00 g, based on onions (diced) having a density of 160g per cup. The exact amount depends on how the ingredient is measured and the specific product.
Multiply the number of cups by 160 (grams per cup for onions (diced)). For 2 cups: 2 × 160 = 320.00 g.
For the most accurate results, weigh onions (diced) 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: 320.00 g ÷ 160 = 2 cups. Or use the Grams to Cups converter.