Cups to Grams Converter
Convert between cups and grams for any ingredient. Cup measurements vary wildly by ingredient — this converter uses accurate densities for 30+ common items.
Why Cup Measurements Are Inaccurate
The Problem with Cups
A cup of scooped flour can weigh 130–160g depending on how it's packed. A cup of properly sifted flour weighs as little as 100g. This 30–60% variation explains why baking recipes from cups often fail — they assume a consistent packing method.
Always Weigh for Baking
Professional bakers use grams because weight is independent of packing, compaction, and scooping technique. If a recipe gives grams, always use grams. If it only gives cups, use this converter to get grams — then you can reliably repeat the recipe.
US vs UK Cups
US legal cup = 240ml. UK metric cup = 250ml. Australian cup = 250ml. This matters most for liquids and fine powders. For most solid ingredients, the difference (about 4%) is within normal cooking tolerance, but it matters in delicate baked goods.
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