Cups to ml converter

How the cups to ml converter works

Type a number of cups and the cups to ml converter shows the milliliters next to it. The page opens on 1 cup, which is 236.59 ml. Fractions go in as decimals or as a division: 0.25 or 1/4 for a quarter cup (59.15 ml), 1/3 for a third (78.86 ml), 2/3 for two thirds (157.73 ml). A sum such as 2+0.5 gives two and a half cups, 591.47 ml.

The US customary cup is 8 US fluid ounces, exactly 236.5882365 ml, and NIST lists it at 236.588 2 mL. Converting cups to milliliters is a single multiplication by that number. The cups to ml converter keeps every decimal, so 3 cups come to 709.76 ml, where a rounded 240 would give 720 ml. The values below run both ways, from a quarter cup to 4 cups and from 30 ml to 1 liter.

Measuring cups, metric cups and dry ingredients

Not every cup is the same size. Recipes from Australia and New Zealand use a metric cup of 250 ml, Japanese recipes a 200 ml cup, and US nutrition labels round the cup to 240 ml for serving sizes. This page uses the US cup of American cookbooks, the customary one, so check which cup a recipe means before converting cups to milliliters.

Liquid and dry measuring cups hold the same US cup and give the same cups to milliliters result: only the shape differs, with a spout and some headroom on the liquid kind. The cup marks on a coffee maker are another matter, smaller and different from brand to brand, so keep them out of a recipe.

Smaller measures follow from the cup: it holds 16 US tablespoons of 14.79 ml each, or 48 teaspoons, so half a cup is 8 tablespoons, and four cups make a US quart of 946.35 ml. Type any of these into the cups to ml converter, or pick tablespoons in the list.

A cup measures volume, not weight, so a cup of flour and a cup of sugar give the same cup to ml result but not the same grams. Our cups to grams conversion covers common ingredients, and the ounces to grams converter handles a recipe that weighs in ounces. For fluid ounces, open the oz to ml converter.