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How Much Is 2.64 Cups of Peanut Butter in Ounces?

Converting 2.64 cups of peanut butter to ounces gives 24.03 oz. One cup of peanut butter weighs 258g, so 2.64 cups is 2.64 × 258 = 681.12g (24.03 oz). This conversion is specific to peanut butter because each ingredient has a different density.

2.64 cups of peanut butter
=
24.03oz
Result using all cup standards info
24.03 oz (US) 25.39 oz (Metric Cup) 28.85 oz (Imperial Cup)
2.64 cups of peanut butter is also
24.03

Formula and Step-by-Step

cups × 258g/cup ÷ 28.3495g/oz = ounces
  1. Start with 2.64 cups of peanut butter
  2. 1 cup of peanut butter = 258g
  3. 2.64 × 258 = 681.12g
  4. Convert grams to ounces: 681.12 ÷ 28.3495 = 24.03 oz

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

Measuring Tip

Peanut butter weighs 258g per cup. Natural and processed versions may have slightly different densities.

Peanut Butter at Different Amounts

How peanut butter scales across common cups measurements. Your amount (2.64 cups) is highlighted.

0.75 cups6.83 oz1 cup9.10 oz1.5 cups13.65 oz2 cups18.20 oz2.64 cups24.03 oz3 cups27.30 oz4 cups36.40 oz5 cups45.50 oz

For reference, 2.64 cups of peanut butter (681.12g) is close in weight to a basketball (624g).

Other Amounts of Peanut Butter

Cups US Ounces Metric Cup Imperial Cup
0.25 cups 2.28 oz 2.40 oz 2.73 oz
0.33 cups 3.00 oz 3.17 oz 3.61 oz
0.5 cups 4.55 oz 4.81 oz 5.46 oz
0.75 cups 6.83 oz 7.21 oz 8.20 oz
1 cup 9.10 oz 9.62 oz 10.93 oz
1.5 cups 13.65 oz 14.42 oz 16.39 oz
2 cups 18.20 oz 19.23 oz 21.86 oz
2.64 cups 24.03 oz 25.39 oz 28.85 oz
3 cups 27.30 oz 28.85 oz 32.79 oz
4 cups 36.40 oz 38.47 oz 43.72 oz
5 cups 45.50 oz 48.08 oz 54.65 oz

Understanding the Units

What is a Cup?

In US cooking, a cup measures volume, not weight. One standard US cup holds 236.588 ml of liquid. Because different ingredients have different densities, a cup of one ingredient can weigh very differently from a cup of another.

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.

Frequently Asked Questions

About 24.03 oz, based on peanut butter having a density of 258g per cup. The exact amount depends on how the ingredient is measured and the specific product.
Multiply the number of cups by 258 (grams per cup for peanut butter), then divide by 28.3495 to convert grams to ounces. For 2.64 cups: 2.64 × 258 = 681.12g, then 681.12 ÷ 28.3495 = 24.03 oz.
For the most accurate results, weigh peanut butter 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: 24.03 oz × 28.3495 = 681.12g, then 681.12g ÷ 258 = 2.64 cups. Or use the Ounces to Cups converter.