Sugar Grams to Cups Converter

Enter grams of sugar, pick the sugar type, and instantly get the equivalent US cup measurement.

Use the Sugar Grams to Cups Converter

Convert Grams to Cups

Density Reference

Sugar type g / cup
Granulated white200 g
Powdered / confectioners120 g
Light brown, packed220 g
Dark brown, packed220 g

Tip: Brown sugar is always measured packed. Spoon it firmly into the cup until it holds the shape of the cup when turned out. Powdered sugar should be spooned in lightly — do not pack or sift unless the recipe specifies.

Quick-Reference Table

Cups for common gram amounts, by sugar type.

Grams Granulated Powdered Brown (packed)

Summary

Different sugar types have different densities, so the same gram weight corresponds to different cup volumes depending on whether you are measuring airy powdered sugar or packed brown sugar. This converter uses standard baking densities — granulated white sugar at 200 g/cup, powdered/confectioners at 120 g/cup, and packed light or dark brown sugar at 220 g/cup — to give you an accurate cup measurement for any gram weight you enter. A quick-reference table for common gram amounts is shown below the converter.

How it works

  1. Enter the weight in grams of sugar you need to convert.
  2. Select the sugar type from the dropdown (granulated, powdered, light brown, or dark brown).
  3. The converter instantly calculates and displays the equivalent US cup measurement.
  4. Fractional cups are shown both as a decimal and as the nearest common kitchen fraction.
  5. Scroll down to the reference table for pre-calculated values at popular gram amounts.

Use cases

  • Convert a metric recipe that lists sugar in grams to US cup measurements.
  • Scale baking recipes when your kitchen scale shows grams but your recipe calls for cups.
  • Determine how many cups of powdered sugar are in a 200 g bag.
  • Cross-check a recipe conversion for accuracy before baking.
  • Help beginner bakers understand the relationship between weight and volume for sugar.
  • Use the reference table as a quick cheat sheet pinned near your kitchen scale.

Frequently Asked Questions

Last updated: 2026-05-29 · Reviewed by Nham Vu