Reference Density•120g / US Cup

300 Grams of Powdered Sugar (Confectioners) to Cups

Baking volume guide, measurement breakdown, and density calculations for 300g of powdered sugar (confectioners).

Direct Answer

300 grams of powdered sugar (confectioners) converts to 2.50 cups (2 cups + 8 tablespoons).

Unless another cup standard is selected, GramsToCups uses the US Customary cup (defined here as 236.588 mL), calculated with a reference density of 120 grams per cup. In common kitchen measurements, this is equivalent to 2 cups + 8 tablespoons, or 10.58 dry ounces.

Practical Measurement Decomposition & Shortcut Advice

Spoon Breakdown

2 cups + 8 tablespoons

Nearest Clean Cup Mark

2½ cups (300g basis)

300g of powdered sugar (confectioners) matches 2½ cups (300g reference basis).

Convert 300g Powdered Sugar to Other Volume Units

Calculate how 300 grams of powdered sugar (confectioners) converts across US customary, US legal, metric, and UK imperial cups.

300g
grams
Brand Density & Package OverrideKing Arthur Baking

Custom package weights override standard database densities for this session without altering official database records.

Calculated Conversion Output
2 cups + 8 tablespoons
2 ½ cups
2.50 cups
Basis: 1 US Customary Cup (236.59 ml) = 120g (Powdered Sugar)
2 Full Cups + Remainder
1 Cup¾½¼
Cross-Unit Equivalent Strip
Tablespoons40 tbsp
Teaspoons120 tsp
Ounces10.58 oz
Millilitres591.5 ml
Butter SticksN/A
Pounds0.66 lbs
Recent Session Conversions (In-Memory):
Perform a conversion above to track recent session items.

Cross-Unit Conversion Table for 300g Powdered Sugar (Confectioners)

Complete measurement equivalents for 300 grams of powdered sugar (confectioners) across standard kitchen units.

Cross-Unit Conversion Table for 300g Powdered Sugar (Confectioners)
Measurement UnitConverted ValueConversion Basis
US Customary Cups2.50 cups (2 cups + 8 tablespoons)236.588 ml / cup (120g/cup default)
US Legal Cups2.46 cups240 ml nutrition label basis
Metric Cups2.37 cups250 ml international standard
US Tablespoons40.0 tbsp16 tbsp per US cup
US Teaspoons120.0 tsp48 tsp per US cup
Ounces Weight10.58 oz28.3495 grams per dry oz
Fluid Volume (ml)591.5 mlDensity: 0.5072 g/ml
Pounds (lbs)0.661 lbs453.592 grams per lb

Brand Variance Analysis for 300g Powdered Sugar (Confectioners)

Different commercial brands of powdered sugar (confectioners) publish slightly different cup weights. Here is how 300 grams of powdered sugar (confectioners) measures across documented brands:

Brand Variance Analysis for 300g Powdered Sugar (Confectioners)
BrandPublished Cup Weight300g Converted VolumeDifference in Tbsp
Domino120g / cup2.50 cups0 tbsp spread
King Arthur Baking113g / cup2.65 cups2.5 tbsp spread

Recipe Context: Measuring 300g of Powdered Sugar (Confectioners)

300 grams of powdered sugar (confectioners) measures to 2.50 cups (2 cups + 8 tablespoons).

Spoon into cup and level or sift first as recipe directs.

Related Weight & Ingredient Navigation

Frequently Asked Questions: 300g Powdered Sugar (Confectioners)

How many cups is 300 grams of powdered sugar (confectioners)?

300 grams of powdered sugar (confectioners) equals 2.50 cups (2 cups + 8 tablespoons), based on a reference density of 120 grams per US customary cup. This is equivalent to 2 cups + 8 tablespoons.

Is 300g of powdered sugar (confectioners) equal to 2½ cups?

Yes. 300 grams of powdered sugar (confectioners) equals 2½ cups based on our reference density of 120g per US cup.

Should I measure 300g of powdered sugar (confectioners) by weight or volume?

Measuring 300 grams on a digital kitchen scale is always recommended for precision baking. However, if using volume, Spoon into cup and level or sift first as recipe directs.

Data Sources & Editorial Verification

Our Calculation Methodology →
Primary Density Source

King Arthur Baking

Brand Benchmarks: Domino (120g/cup), King Arthur Baking (113g/cup)
Editorial Audit

Last reviewed on 2026-08-20

Methodology & formulas audited against our calculation standards.