Baking Conversion Calculator
Convert common baking ingredients between cups, grams, and ounces — because a 'cup' of flour and a cup of sugar don't weigh the same.
Weight in grams
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In ounces —
Values are typical averages — actual weight varies with how ingredients are packed or sifted.
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How it works
Grams = cups × ingredient-specific grams-per-cup (density varies by ingredient)Frequently Asked Questions
How many grams is a cup of flour?
About 120–125g for all-purpose flour when spooned and leveled, though scooping directly from the bag can pack it to 140g+ — which is why bakers who care about precision weigh flour rather than using cup measures.
Why can't I use one conversion factor for all ingredients?
Different ingredients have very different densities: a cup of flour (~125g) weighs much less than a cup of granulated sugar (~200g) or a cup of butter (~227g), because they pack differently at the same volume.
Should I measure baking ingredients by weight or volume?
Weight (grams) is far more accurate and consistent — a cup of flour can vary by 20% or more depending on how it's scooped, while a gram of flour is always the same amount. Professional and serious home bakers weigh ingredients whenever possible.