Convert Water: cups to ml
1 cup of Water = 236.6 ml
Amount of Water
Density: 1 g/ml · Water
Water: cups to ml at a glance
The amounts people ask for most, worked out for Water.
How much Water weighs
Every figure below is one measured number — 236.6 g per US cup — scaled. That is why this table and the converter above it cannot disagree.
One cup, side by side
Why is water on an ingredient converter at all?
Because it is the reference every other ingredient here is measured against, and because it is the one case where the numbers are definitions rather than measurements: one US cup is exactly 236.588 ml, and water is 1 g per ml, so a cup of water weighs 236.588 g. It is also the assumption a generic converter makes about everything else — which is how you end up being told a cup of all-purpose flour is 237 g when it is 120 g.
Source for Water: Definition: 1 US cup = 236.588 ml at 1 g/ml
Frequently asked questions
How many ml is 1 cup of Water?
1 cup of Water is 236.6 ml. Cups, millilitres, tablespoons and teaspoons all measure volume, so this figure is the same whatever is in the cup — a US cup is 236.588 ml, 16 tablespoons and 48 teaspoons by definition. What the ingredient changes is the weight: a cup of Water is 236.6 g.
How many cups is 250 ml of Water?
250 ml of Water is 1.06 cups. It is the same conversion read backwards, so this page and its reverse always agree.
Is one millilitre of Water the same as one gram?
Yes, and uniquely so — water is 1 g per ml by definition, which is where the 236.588 g cup comes from. Every other ingredient on this site departs from it in one direction or the other, which is the reason the site exists.
Where does dishscale's figure for Water come from?
One US cup of Water is 236.6 g. The dataset records that as: “Definition: 1 US cup = 236.588 ml at 1 g/ml”. Every ingredient on the site carries the reference its weight came from, so any number here can be checked — and corrected if the source disagrees.