What Is This Tool?
This tool allows you to convert volume measurements from the metric cup, defined as exactly 250 millilitres, to the US customary cup, which equals approximately 236.588 milliliters. It helps translate ingredients and servings between different measuring systems used internationally in cooking and nutrition.
How to Use This Tool?
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Enter the volume value in metric cups you want to convert
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Select 'cup (metric)' as the from unit
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Choose 'cup (US)' as the to unit
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Click convert to see the equivalent volume in US cups
Key Features
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Converts volume units from metric cups to US customary cups
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Uses precise conversion rate based on exact millilitre definitions
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Supports culinary and nutritional measurement needs
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Browser-based and easy to use without installation
Examples
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1 cup (metric) equals approximately 1.0567 cup (US)
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2 cups (metric) convert to about 2.1134 cups (US)
Common Use Cases
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Following recipes that use metric volumes when cooking in the US
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Translating ingredient volumes on food packaging and labels
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Ensuring correct portion sizes based on different cup definitions
Tips & Best Practices
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Check if your recipe or label uses the standard US customary cup or the legal cup (240 mL)
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Use this conversion when precise volume measurements are important
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Keep in mind small volume differences may affect baking outcomes
Limitations
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The US customary cup and US legal cup differ slightly in volume
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Minor measurement differences can impact very precise recipes
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Confirm cup definitions in your source to ensure correct conversions
Frequently Asked Questions
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What is the size of a metric cup?
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A metric cup is exactly 250 millilitres, used mainly in countries with metric measurement systems.
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How many milliliters are in a US customary cup?
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The US customary cup is equal to approximately 236.588 milliliters.
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Why might conversions between these cups be slightly off?
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Because the US commonly uses both a standard cup and a 'legal' cup of 240 mL, which differ slightly in volume.
Key Terminology
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Metric Cup
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A volume unit defined as exactly 250 millilitres, commonly used in metric system countries for cooking and nutrition.
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US Customary Cup
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A unit of volume equal to about 236.588 millilitres, widely used in US recipes for measuring liquid and dry ingredients.
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Legal Cup (US)
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A measurement sometimes used in US nutrition labeling, defined as 240 millilitres, slightly different from the standard US customary cup.