Butter
US Cup to Metric Cup
Understanding Butter Conversions
The Math Behind This Conversion
Converting 1 us cup to metric cup is a direct volume conversion. One us cup equals 236.59ml, and one metric cup equals 250ml. So 1 us cup (236.59ml) equals 0.9 metric cup.
Measurement Tip
Butter is easiest to measure using the wrapper markings (if available) or by the displacement method: fill a 2-cup measure with 1 cup of water, then add butter until the water reaches your desired total. For example, for ½ cup butter, add butter until the water reaches 1½ cups.
About Our Data
The density value of 0.96 g/ml for butter is from the USDA FoodData Central database (ID: 173410). This measurement was taken with butter firmly packed into the measuring cup.
Frequently Asked Questions
1 us cup of butter weighs approximately 1 metric cup. This is based on a density of 0.96 g/ml for butter.
For solid butter, use the markings on the wrapper when available. For softened butter, pack into a dry measuring cup.
Butter has a density of 0.96 g/ml, meaning each milliliter weighs 0.96 grams. Different ingredients have different densities—for example, flour is lighter than sugar—which is why each needs its own conversion factor.