390 Grams of Powdered Sugar (Confectioners) to Cups
Baking volume guide, measurement breakdown, and density calculations for 390g of powdered sugar (confectioners).
Direct Answer
390 grams of powdered sugar (confectioners) converts to 3.25 cups (3 cups + 4 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 3 cups + 4 tablespoons, or 13.76 dry ounces.
Practical Measurement Decomposition & Shortcut Advice
3 cups + 4 tablespoons
3 cups (360g basis)
The nearest clean measure is 3 cups, which is 30g over. That is suitable for simple dessert dusting but a digital scale is recommended for royal icing or silky buttercream.
Convert 390g Powdered Sugar to Other Volume Units
Calculate how 390 grams of powdered sugar (confectioners) converts across US customary, US legal, metric, and UK imperial cups.
Custom package weights override standard database densities for this session without altering official database records.
Cross-Unit Conversion Table for 390g Powdered Sugar (Confectioners)
Complete measurement equivalents for 390 grams of powdered sugar (confectioners) across standard kitchen units.
| Measurement Unit | Converted Value | Conversion Basis |
|---|---|---|
| US Customary Cups | 3.25 cups (3 cups + 4 tablespoons) | 236.588 ml / cup (120g/cup default) |
| US Legal Cups | 3.20 cups | 240 ml nutrition label basis |
| Metric Cups | 3.08 cups | 250 ml international standard |
| US Tablespoons | 52.0 tbsp | 16 tbsp per US cup |
| US Teaspoons | 156.0 tsp | 48 tsp per US cup |
| Ounces Weight | 13.76 oz | 28.3495 grams per dry oz |
| Fluid Volume (ml) | 768.9 ml | Density: 0.5072 g/ml |
| Pounds (lbs) | 0.860 lbs | 453.592 grams per lb |
Brand Variance Analysis for 390g Powdered Sugar (Confectioners)
Different commercial brands of powdered sugar (confectioners) publish slightly different cup weights. Here is how 390 grams of powdered sugar (confectioners) measures across documented brands:
| Brand | Published Cup Weight | 390g Converted Volume | Difference in Tbsp |
|---|---|---|---|
| Domino | 120g / cup | 3.25 cups | 0 tbsp spread |
| King Arthur Baking | 113g / cup | 3.45 cups | 3.2 tbsp spread |
Recipe Context: Measuring 390g of Powdered Sugar (Confectioners)
390 grams of powdered sugar (confectioners) measures to 3.25 cups (3 cups + 4 tablespoons).
Spoon into cup and level or sift first as recipe directs.
Related Weight & Ingredient Navigation
Frequently Asked Questions: 390g Powdered Sugar (Confectioners)
How many cups is 390 grams of powdered sugar (confectioners)?
390 grams of powdered sugar (confectioners) equals 3.25 cups (3 cups + 4 tablespoons), based on a reference density of 120 grams per US customary cup. This is equivalent to 3 cups + 4 tablespoons.
Is 390g of powdered sugar (confectioners) equal to 3 cups?
390 grams of powdered sugar (confectioners) equals 3.25 cups, which differs from 3 cups by 30 grams. The practical breakdown is 3 cups + 4 tablespoons.
Should I measure 390g of powdered sugar (confectioners) by weight or volume?
Measuring 390 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 →Last reviewed on 2026-08-20
Methodology & formulas audited against our calculation standards.