How do I scale the original portion?

Start with 135 g per 0.5 cup. Multiply that gram amount by the requested number of source portions. The generated amount table uses the same calculation as the converter; displayed results are rounded only at the end.

Can I convert milliliters of peanut butter to grams here?

No independently verified density is available for this ingredient in this release. Cup/spoon reference weights cannot establish one without a verified source cup volume. Volume-to-volume and grams-to-ounces conversions still work.

Peanut Butter: Cups to Grams Converter

Q: Which preparation does this peanut butter reference cover?

Peanut butter. A half-cup is the original source portion for peanut butter. Cup and spoon amounts on this page scale that reference; they do not establish a universal density for every peanut butter.

Use ingredient estimates where supported, or convert volume and mass units. Check cooking measurement conventions.

Ingredient

Amount

From

Peanut Butter: Estimate: 270 Grams

Estimate from the source portion, scaled using 1 cup = 16 tablespoons = 48 teaspoons. The source chart does not specify its cup volume in mL. Follow your recipe’s supplied grams when available.

Reference: 135 g per 0.5 cup. Peanut butter. King Arthur Baking ingredient weight chart.

A half-cup is the original source portion for peanut butter. Cup and spoon amounts on this page scale that reference; they do not establish a universal density for every peanut butter. The source portion is 135 g per 0.5 cup. Cups and spoons are estimates scaled from this rounded reference using 16 tablespoons or 48 teaspoons per cup; the chart does not state its cup volume in mL.

Common Amounts (estimates)

Estimate from the source portion, scaled using 1 cup = 16 tablespoons = 48 teaspoons. The source chart does not specify its cup volume in mL. Follow your recipe’s supplied grams when available.

Peanut Butter: estimated grams from the cited reference; values rounded to 2 decimal places.
Cups	Grams
1/4 cups	67.5 g
1/3 cups	90 g
1/2 cups	135 g
2/3 cups	180 g
3/4 cups	202.5 g
1 cup	270 g
2 cups	540 g

Frequently Asked Questions

Last reviewed: 2026-10-05 · Source: King Arthur Baking ingredient weight chart · see our methodology

All-Purpose Flour cups to grams Bread Flour cups to grams Whole Wheat Flour cups to grams Granulated Sugar cups to grams Brown Sugar (packed) cups to grams Powdered Sugar (unsifted) cups to grams Butter cups to grams Honey cups to grams

Peanut Butter: Cups to Grams Converter

Common Amounts (estimates)

Frequently Asked Questions

Related Converters