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30 Grams to Cups: Flour, Sugar, Butter & Oats (30g to Cups)
30 grams equals 1/4 cup (4 tablespoons) of all-purpose flour or powdered sugar, 2 tablespoons plus 1.2 teaspoons of granulated white sugar (0.15 cup), 2 tablespoons of butter (0.13 cup or 1/4 stick), and 1/3 cup of rolled oats. Because a gram (g or gm) measures mass and a US cup measures volume, converting 30g to cups depends on the specific density of the ingredient. For any other weight or ingredient, use our grams to cups converter.
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30 Grams to Cups Conversion Chart (Flour, Sugar, Butter & Staples)
In small-batch baking, sauces, and roux preparation, 30 grams (1.06 ounces) is a benchmark weight that often bridges tablespoons and quarter-cups. Use the table below to find the exact US cup decimal, fraction, and tablespoon equivalent for 30 g of 12 common kitchen ingredients.
| Ingredient | Grams per 1 US Cup | 30g in Cups (Decimal) | Exact Kitchen Measure (Cups & Spoons) |
|---|---|---|---|
| All-Purpose Flour | 120 g | 0.25 cup | 1/4 cup (4 tbsp) |
| Bread Flour | 127 g | 0.24 cup | 1/4 cup minus 1/2 tsp |
| Cake Flour | 114 g | 0.26 cup | 1/4 cup + 1/2 tsp |
| Granulated White Sugar | 200 g | 0.15 cup | 2 tbsp + 1.2 tsp |
| Packed Brown Sugar | 220 g | 0.14 cup | 2 tbsp + 1/2 tsp |
| Powdered Sugar (Unsifted) | 120 g | 0.25 cup | 1/4 cup (4 tbsp) |
| Butter (Salted / Unsalted) | 227 g | 0.13 cup | 2 tbsp + 1/3 tsp (1/4 US stick) |
| Rolled Oats | 90 g | 0.33 cup | 1/3 cup (5 tbsp + 1 tsp) |
| Cocoa Powder (Unsweetened) | 85 g | 0.35 cup | 1/3 cup + 1 tsp |
| Water / Milk / Broth | 240 g | 0.125 cup | 1/8 cup (2 tbsp / 30 ml) |
| Vegetable / Olive Oil | 218 g | 0.14 cup | 2 tbsp + 1/2 tsp |
| Honey / Maple Syrup | 340 g | 0.09 cup | 1 tbsp + 1.2 tsp |
How to Measure 30 Grams Without a Kitchen Scale
Because 30 grams is a relatively small weight, using a full-sized 1-cup container creates large visual margin-of-error gaps. Instead, match your tool to the ingredient’s bulk density:
- For 30g of Flour or Powdered Sugar (1/4 Cup): Fluff the powder with a fork, spoon it lightly into a flat-rimmed 1/4 cup dry measure (or scoop 4 level tablespoons), and sweep the top flat with a knife edge.
- For 30g of Liquids (1/8 Cup / 2 Tbsp): Because water and milk have a density of 1.0 g/ml, 30 grams equals 30 milliliters—which is exactly 2 US tablespoons (1 fluid ounce).
- For 30g of Stick Butter: Each tablespoon line marked on a US butter wrapper weighs 14.2 grams. Cut just past the 2-tablespoon mark (28.4 g is 1 ounce) to get 30 grams.
- For 30g of Rolled Oats or Whey Protein: A standard 30-gram serving of oats fills exactly 1/3 cup.
Mathematical Formula: Converting 30g (30 gm) to Cups
To convert 30 grams to US cups for any ingredient, divide 30 by the standard weight in grams of 1 cup of that ingredient:
US Cups = 30 g ÷ (Grams per 1 US Cup of Ingredient)
- All-Purpose Flour: 30 ÷ 120 g = 0.25 cups (1/4 cup)
- Granulated Sugar: 30 ÷ 200 g = 0.15 cups (2.4 tablespoons)
- Water or Milk: 30 ÷ 240 g = 0.125 cups (1/8 cup or 2 tablespoons)
Frequently Asked Questions About 30 Grams to Cups
How many cups is 30 grams of flour?
30 grams of all-purpose flour equals exactly 1/4 cup (0.25 US cups) or 4 level tablespoons when measured using the spoon-and-level method.
How many tablespoons is 30 grams of butter?
30 grams of butter equals 2.1 tablespoons (about 2 tablespoons plus 1/3 teaspoon), or roughly 1/8 cup (one-quarter of a standard 113g US butter stick).
How many cups is 30g of sugar?
30 grams of granulated white sugar equals 0.15 cups, which is easiest to measure in the kitchen as 2 tablespoons plus 1 and 1/4 teaspoons.
Is 30 grams of oats 1/3 cup or 1/2 cup?
30 grams of old-fashioned rolled oats equals 1/3 cup (0.33 cups). A 1/2-cup serving of rolled oats weighs 45 grams.
Related Weight & Spoon Conversions
- Cups to Grams Master Converter
- How Many Grams in a Tablespoon? (30g = 2 tbsp butter)
- ML to Cups Converter (30g = 30ml water)
- 60 Grams to Cups Converter (Double Batch of 30g)
- 50 Grams to Cups Converter
- 100 Grams to Cups Converter
- 4 Tablespoons to Cups (1/4 Cup = 30g Flour)
- Tablespoons to Grams Chart
- Grams to Cups Master Calculator