Cups to Milliliters Converter

How to Convert Cups to Milliliters?

One US customary cup equals 236.588 milliliters, commonly rounded to 240 ml for cooking purposes. Multiply cups by 240 (or 236.588 for precision) to get milliliters. Conversely, divide milliliters by 240 to get cups. Half a cup is 120 ml. A quarter cup is 60 ml. Three-quarters of a cup is 180 ml. Enter any value in the converter above for instant conversion between cups and milliliters with both US and metric cup standards supported.

Cup Size Standards

Not all cups are equal across countries. A US customary cup = 236.588 ml (rounded to 240 ml). A US legal cup (used on nutrition labels) = 240 ml exactly. A metric cup (Australia, Canada, New Zealand) = 250 ml. An Imperial cup (UK, older recipes) = 284.131 ml. A Japanese cup = 200 ml. When following recipes from different countries, identifying which cup standard is intended prevents measurement errors that can ruin baked goods. Australian and New Zealand recipes that call for "1 cup" mean 250 ml, not 240 ml, a difference that accumulates across multiple cups of ingredients.

Cups to ML Conversion Table

1/8 cup = 30 ml. 1/4 cup = 60 ml. 1/3 cup = 80 ml. 1/2 cup = 120 ml. 2/3 cup = 160 ml. 3/4 cup = 180 ml. 1 cup = 240 ml. 1.5 cups = 360 ml. 2 cups = 480 ml (1 US pint). 3 cups = 720 ml. 4 cups = 960 ml (1 US quart). 8 cups = 1,920 ml (half gallon). 16 cups = 3,840 ml (1 US gallon). These values use the rounded 240 ml per cup standard. For nutrition label calculations, use the exact 240 ml legal cup definition.

Why Do Professional Bakers Use Milliliters and Grams?

Cup measurements are inconsistent because how you scoop affects the amount. A cup of flour can range from 120 g to 160 g depending on whether you spoon it lightly or pack it firmly. A cup of brown sugar changes dramatically with packing density. Milliliters eliminate this variability for liquid ingredients, and grams do the same for dry ingredients. Professional bakeries, pastry schools, and serious home bakers worldwide have shifted to weight-based recipes. If you are converting a cup-based recipe to metric, use standard ingredient density charts rather than a simple volume conversion, because 1 cup of different ingredients corresponds to very different weights.

Cups to ML for Beverages

Coffee makers are rated in "cups" but these are 5-6 oz cups (148-177 ml), not standard 8 oz (240 ml) cups. A "12-cup" coffee maker actually produces about 60 oz or 1,775 ml, which is closer to 7.4 standard cups. Water glasses and mugs vary from 200 ml to 500 ml. A standard water glass is about 250 ml (roughly 1 cup). Health recommendations to "drink 8 cups of water a day" mean approximately 1,920 ml (about 2 liters). Understanding these conversions helps you accurately track fluid intake and follow recipe instructions for beverages, cocktails, and smoothies.

Measuring Cups vs Measuring Spoons

Cups divide into tablespoons and teaspoons: 1 cup = 16 tablespoons = 48 teaspoons. 1 tablespoon = 15 ml. 1 teaspoon = 5 ml. Half a tablespoon = 7.5 ml. For small quantities, measuring spoons are more accurate than trying to estimate fractions of a cup. Liquid measuring cups (with pour spouts) should be read at eye level at the meniscus line. Dry measuring cups (without pour spouts) should be leveled off with a straight edge. Using the wrong type of measuring cup introduces errors of 10-15%, enough to affect baking outcomes noticeably.

International Recipe Conversion Tips

When converting between cup-based and metric recipes, follow these guidelines. For liquids (water, milk, oil), a straight volume conversion works well: 1 cup = 240 ml. For dry ingredients, convert to weight rather than volume: look up "1 cup of [ingredient] in grams" for the specific ingredient. Use a kitchen scale for best results. When a European recipe lists "200 ml flour," do not assume you can use a cup measurement, as the density of flour means 200 ml weighs about 110 g, while a cup of flour weighs 125-130 g. For sugar, butter, and other dense ingredients, the volume-to-weight relationship is more predictable but still benefits from weighing rather than measuring by volume.

Frequently asked questions