Calcs4All

APR 23 · 2026

Cups to grams calculator

Convert cups to grams for common baking ingredients with the density assumption shown.

What this calculator covers

Use this cups to grams calculator when a recipe gives volume but your scale works in grams.

Frequently asked questions

Why do different ingredients give different gram weights for the same cup measurement?
Each ingredient has a different density, so a cup of flour weighs much less than a cup of water or butter. The calculator uses a per-ingredient grams-per-cup value to account for this.
Are these conversions exact?
The results are practical kitchen estimates, not laboratory measurements. Actual weight can vary slightly depending on how tightly the ingredient is packed and the specific brand or variety used.
Which cup size does this calculator use?
It uses the standard US cup, which equals approximately 237 milliliters. If a recipe uses a metric or imperial cup, the result will differ slightly.
Can I convert fractions of a cup?
Yes. Enter any decimal value, including common fractions like 0.25 for a quarter cup or 0.333 for a third cup.

Tool

Run the calculation

cups

RESULT · GRAMS

â„–179

Primary result

187.5 g

1.5 cups of all-purpose flour weighs about 187.5 g using 125 g per cup.

Ingredient
All-purpose flour
Volume used
1.5 cups
Density assumption
125 g/cup
Estimated weight
187.5 g

Step-by-step solution

  1. 1.Read the selected density for all-purpose flour: 125 grams per cup.
  2. 2.Multiply the measured cups by that density: 1.5 × 125.
  3. 3.Round the kitchen-weight estimate to get 187.5 g.

Walkthrough

Visual walkthrough

Cups-to-grams conversion depends on the chosen ingredient because each ingredient packs a different amount of mass into one cup.

  1. 01

    Pick the density table row

    All-purpose flour = 125 g/cup

    The ingredient table provides the grams-per-cup estimate used for the rest of the calculation.

  2. 02

    Multiply cups by grams per cup

    1.5 × 125

    This translates the measured cup volume into an estimated gram weight.

  3. 03

    Read the kitchen weight estimate

    The result is an ingredient-specific estimate based on the selected density rather than a lab-measured mass.

    187.5 g