Sugars & Syrups
Convert tablespoons of powdered sugar to grams
One tablespoon of powdered sugar weighs about 7.5 g, and half a tablespoon comes to roughly 3.75 g. Enter any amount below to convert it, or use the chart further down as a quick reference while you cook.
1 tbsp of powdered sugar =
7.5 g
- oz
- 0.265
- kg
- 0.0075
- lb
- 0.017
Powdered Sugar: 120 g per US cup · FAO / INFOODS density database. Unsifted powdered sugar traps lumps and air. Sifted it measures around 112 g per cup.
Full powdered sugar chart →Powdered Sugar at a glance
Every number on this page comes from a single figure: 120 grams per US cup (FAO / INFOODS density database).
- 1 cup
- 120 g
- 1 tablespoon
- 7.5 g
- 1 teaspoon
- 2.5 g
- 1 cup in ounces
- 4.23 oz
- 100 g in cups
- 0.833 cups
- Density
- 0.51 g/ml
tablespoons to grams chart for powdered sugar
Print it, screenshot it, or bookmark this page — these are the amounts recipes ask for most often.
| Tablespoons (US) | Grams | Ounces (weight) | Pounds |
|---|---|---|---|
| 1 tbsp | 7.5 g | 0.265 oz | 0.017 lb |
| 2 tbsp | 15 g | 0.529 oz | 0.033 lb |
| 3 tbsp | 22.5 g | 0.794 oz | 0.05 lb |
| 4 tbsp | 30 g | 1.06 oz | 0.066 lb |
| 5 tbsp | 37.5 g | 1.32 oz | 0.083 lb |
| 6 tbsp | 45 g | 1.59 oz | 0.099 lb |
| 8 tbsp | 60 g | 2.12 oz | 0.132 lb |
| 10 tbsp | 75 g | 2.65 oz | 0.165 lb |
| 12 tbsp | 90 g | 3.17 oz | 0.198 lb |
| 16 tbsp | 120 g | 4.23 oz | 0.265 lb |
How this conversion is calculated
Volume-to-weight conversions are only as good as the density behind them. We treat powdered sugar as 120 g per US customary cup, which works out to 0.507 g/ml. From there:
- Your tablespoons figure is converted into millilitres or grams using standard unit sizes (tbsp = 14.8 ml).
- The density above bridges volume and weight in whichever direction you need.
- The result is rounded the way a cook would round it — to the nearest gram, or to a usable fraction such as 7/8 cups.
Measuring powdered sugar accurately
Unsifted powdered sugar traps lumps and air. Sifted it measures around 112 g per cup.
If a recipe matters to you — bread, macarons, anything with a tight hydration or ratio — weigh it. A £10 digital scale removes the single largest source of variation in home baking, and it is faster than washing three measuring cups.
When cups are fine
- Liquids measured in a proper jug, where volume is the honest unit anyway.
- Forgiving savoury cooking: soups, stews, stir-fries, marinades.
- Small amounts of leaveners and spices, as long as you use level spoons.
Frequently asked questions
How many grams are in 1 tablespoon of powdered sugar?
1 tablespoon of powdered sugar is 7.5 g. This is based on a density of 120 g per US cup.
How many grams are in 2 tablespoons of powdered sugar?
2 tablespoons of powdered sugar is 15 g, and 3.75 g for half a tablespoon.
How much is 100 g of powdered sugar in cups?
100 g of powdered sugar is about 7/8 cups. Weight is always the more reliable measurement, so use a scale when the recipe gives grams.
Why do other sites give a different number for powdered sugar?
Unsifted powdered sugar traps lumps and air. Sifted it measures around 112 g per cup.
Do UK and Australian cups give the same result?
No. A US customary cup is 236.6 ml, a metric cup used in Australia and New Zealand is 250 ml, and an old UK imperial cup is 284 ml. Our default is the US cup, but you can pick metric cups in the converter.