Cooking Measurement Converter
Convert cups, grams, ounces, and oven temperatures instantly — with ingredient-aware weight conversions for accurate baking.
Volume Converter
Weight estimates use standard ingredient densities and can vary based on how an ingredient is scooped, packed, or sifted. For best baking accuracy, weigh ingredients on a kitchen scale.
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Why a cup of flour doesn't weigh the same as a cup of sugar
Volume measurements like cups and tablespoons tell you how much space an ingredient takes up, not how much it weighs. Two ingredients that fill the same cup can have very different weights because of how their particles pack together. Flour is light and full of tiny air pockets between its fine particles, so a cup holds relatively little mass. Granulated sugar crystals are denser and settle more tightly, so a cup of sugar weighs almost twice as much as a cup of flour. Liquids like honey are denser still, while something like rolled oats is bulky and light.
This is why recipes that only list volume (like "2 cups of flour") can produce inconsistent results — the same "2 cups" can vary by 20% or more in weight depending on whether the flour was sifted, scooped and leveled, or packed down. That's exactly why our volume converter above includes an ingredient selector: it applies a realistic gram-per-cup density for whichever ingredient you're measuring, instead of assuming every cup weighs the same.
Reference table: common ingredient conversions
| Ingredient | 1 Cup (grams) | 1 Cup (ounces) | 1 Tablespoon (grams) |
|---|---|---|---|
| Water | 236 g | 8.3 oz | 14.8 g |
| All-Purpose Flour (spooned & leveled) | 120 g | 4.2 oz | 7.5 g |
| Granulated Sugar | 200 g | 7.1 oz | 12.5 g |
| Brown Sugar (packed) | 213 g | 7.5 oz | 13.3 g |
| Butter | 227 g | 8.0 oz | 14.2 g |
| Honey | 340 g | 12.0 oz | 21.3 g |
| Rice (uncooked) | 185 g | 6.5 oz | 11.6 g |
| Rolled Oats | 90 g | 3.2 oz | 5.6 g |
Values are approximate averages based on standard baking references and will vary slightly depending on brand, humidity, and measuring technique.
Frequently asked questions
Why does a cup of flour weigh differently than a cup of sugar?
Weight depends on both volume and density, and different ingredients pack into a measuring cup differently. Flour is light and airy with lots of trapped space between particles, while granulated sugar's small, uniform crystals settle more tightly, so a cup of sugar weighs almost twice as much as a cup of flour.
Is it more accurate to bake by weight or by volume?
Baking by weight is more accurate because it removes variability from how ingredients are scooped, packed, or leveled. A cup of flour can vary by 20-30% in weight depending on technique, while a kitchen scale gives the same gram measurement every time.
What is Gas Mark 4 in Fahrenheit and Celsius?
Gas Mark 4 is approximately 350°F or 177°C, a common temperature for cakes and general baking in UK recipes.
How many grams are in a cup of butter?
One US cup of butter weighs approximately 227 grams, which is the same as two standard sticks of butter in the US.