Volume Converter
This volume converter changes between milliliters, liters, teaspoons, tablespoons, fluid ounces, cups, pints, quarts, and gallons, all at once. Type a value in any unit and the rest update live, so ml to oz, cups to ml, or liters to gallons takes one entry. It's built for cooking and everyday use, with a conversion chart and a grams-to-cups guide below.
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Last updated July 26, 2026 1 cup = 236.6 ml (US) Built by Muhammad Younus
US customary units. Type any value and every unit updates live.
1 cup × 236.59 = 236.59 ml
How do you convert ml to oz?
To convert milliliters to fluid ounces, divide by 29.5735, since one US fluid ounce is 29.5735 ml. So 100 ml is 3.38 fl oz, 250 ml is 8.45 fl oz, and 500 ml is 16.9 fl oz. To go from fluid ounces to ml, multiply by 29.5735 instead. One thing to watch: this is the fluid ounce, a volume, not the dry ounce that measures weight. They share a name but they're different, so you can't swap them.
How many ml are in a cup?
One US cup holds 236.6 ml. Within it, there are 8 fluid ounces, 16 tablespoons, and 48 teaspoons, so half a cup is 118 ml and a quarter cup is 59 ml. Watch out for the metric cup, used in Australia and parts of Europe, which is 250 ml, slightly larger. This converter uses US customary units, the standard in American recipes, so if a recipe is written in metric, you'll work from the ml directly. Type 1 cup above and you'll see every unit at once.
How do you convert liters to gallons?
Divide the liters by 3.785, because one US gallon is 3.785 liters. So 5 liters is 1.32 gallons, and 10 liters is 2.64 gallons. Multiply the other way to turn gallons into liters. Within a US gallon there are 4 quarts, 8 pints, 16 cups, or 128 fluid ounces, so those bigger cooking and storage volumes all tie back to the same unit. Here's the catch worth knowing: the UK imperial gallon is bigger, about 4.546 liters, so a US gallon and a UK gallon aren't the same thing. This converter uses the US gallon, which is what you'll want for American recipes, fuel, and most day-to-day needs.
Grams to cups: why it depends on the ingredient
Grams measure weight and cups measure volume, so there's no single factor between them; it depends on how dense the ingredient is. A cup of water weighs 237 g, but a cup of flour is only about 125 g because flour is light and airy, while a cup of sugar is around 200 g. That's why a kitchen scale beats cups for baking. Here's a quick guide for one US cup of common ingredients:
| 1 cup of | Weighs about |
|---|---|
| Water | 237 g |
| All-purpose flour | 125 g |
| Granulated sugar | 200 g |
| Brown sugar (packed) | 220 g |
| Butter | 227 g |
| Milk | 244 g |
For a full ingredient breakdown, the cups to grams converter covers more foods, and for weight on its own the weight converter handles grams, ounces, and pounds.
How big is that? A feel for common volumes
A number in milliliters can be hard to picture, so here's a size guide for the volumes people look up most, from a quarter cup to a full liter. A quick rule of thumb: 240 ml is about one cup, 500 ml is a single-serve water bottle, and 1,000 ml is a liter. Every figure below comes straight from this converter's own factors, rounded so it's easy to read.
| Volume | In cups | In fl oz | Everyday example |
|---|---|---|---|
| 59 ml | 0.25 cup | 2 fl oz | a quarter cup |
| 118 ml | 0.5 cup | 4 fl oz | half a cup, a small yogurt cup |
| 237 ml | 1 cup | 8 fl oz | one US cup, a small drinking glass |
| 355 ml | 1.5 cups | 12 fl oz | a standard soda can |
| 398 ml | 1.68 cups | 13.5 fl oz | a common Canadian can size |
| 473 ml | 2 cups | 16 fl oz | one US pint, a tall can |
| 500 ml | 2.11 cups | 16.9 fl oz | a single-serve water bottle |
| 1,000 ml | 4.23 cups | 33.8 fl oz | one liter, a large water bottle |
Can sizes rarely land on a round cup figure, which is why a 355 ml soda can is 1.5 cups and a 473 ml can is a clean 2 cups. For an exact figure on any value, type it into the converter above and read it across every unit at once.
Volume conversion chart
The cooking volumes you reach for most, so you'll find them at a glance.
| From | Equals | From | Equals |
|---|---|---|---|
| 1 tsp | 4.93 ml | 1 tbsp | 14.79 ml |
| 1 fl oz | 29.57 ml | 1/4 cup | 59.15 ml |
| 1/2 cup | 118.3 ml | 1 cup | 236.6 ml |
| 2 cups | 473.2 ml | 1 pint | 473.2 ml |
| 1 quart | 946.4 ml | 1 liter | 33.81 fl oz |
| 1 liter | 4.23 cups | 1 gallon | 3.785 L |
Need other units? The length and temperature converters round out the kitchen set, with more on the converters hub.
Frequently asked questions
How much is 250 ml in cups?
250 ml is about 1.06 US cups, just over a cup. It's also 8.45 fluid ounces. A metric cup is exactly 250 ml, so if a recipe uses metric cups, 250 ml is one cup on the nose.
Divide the milliliters by 29.5735, since one US fluid ounce is 29.5735 ml. So 100 ml is about 3.38 fl oz, and 500 ml is 16.9 fl oz. To go from fluid ounces to ml, multiply by 29.5735 instead. This is for fluid ounces, a volume; a dry ounce is a weight, so don't mix the two. The converter above does the volume side live.
A US cup is 236.6 ml, and a US tablespoon is 14.79 ml, so there are 16 tablespoons in a cup. A metric cup, used in Australia and parts of Europe, is 250 ml instead, so you'll want to check which one a recipe means. This tool uses US customary units, the standard in American recipes. Type 1 cup above to see it in ml, ounces, and more.
Divide the liters by 3.785, since one US gallon is 3.785 liters. So 5 liters is about 1.32 gallons, and 10 liters is 2.64 gallons. Going the other way, multiply gallons by 3.785. Note that a UK imperial gallon is larger, about 4.546 liters, so a US gallon and a UK gallon aren't the same. The converter uses US gallons.
That one depends on the ingredient, because grams measure weight and cups measure volume. A cup of water is 237 g, but a cup of flour is about 125 g and a cup of sugar is around 200 g, since they pack differently. So there's no single factor. Use the ingredient table on this page for the common ones, and you'll want to weigh your ingredients when a recipe needs precision.
US recipes use cups, tablespoons, and fluid ounces, while metric recipes use milliliters and liters. The US cup measures 236.6 ml against the metric cup's 250 ml, close but not identical, which matters in baking. This converter works in US customary units. When a recipe is metric, convert the ml directly and you'll stay accurate.
There are 16 tablespoons in a US cup, 8 fluid ounces in a cup, and 3 teaspoons in a tablespoon. Those whole-number steps make scaling recipes easy: half a cup is 8 tablespoons, and a quarter cup is 4. The converter handles the awkward decimals, so you don't have to remember every relationship at once.
A US gallon holds 128 fluid ounces. It also breaks down into 4 quarts, 8 pints, or 16 cups, so half a gallon is 64 fluid ounces and a quart is 32. Remember these are fluid ounces, a volume, not dry ounces by weight. Type 1 gallon in the converter above and you'll see it in ounces, cups, liters, and every other unit at once.
There are 4 cups in a US quart, since a quart is 2 pints and each pint is 2 cups. That also makes a gallon 4 quarts, or 16 cups. So a pint is 2 cups, a quart is 4, and a gallon is 16, doubling each step up. Enter 1 quart above to check any of these against the other units instantly.
Half a liter, or 500 ml, works out to 16.9 fluid ounces and about 2.11 cups, which is the size of a standard single-serve water bottle. Two of them make a full liter. That's roughly 34 tablespoons, but at this size the bottle or the cup measure is the easier thing to picture. Type 500 ml above and the converter fills in gallons and every other unit.
473 ml is 2 US cups exactly, because it is one US pint and a pint is 2 cups. That works out to 16 fluid ounces, the size of a tall can. A 355 ml can comes to 1.5 cups and a 398 ml can about 1.68 cups, so cans rarely land on a round cup figure. Enter 473 ml in the converter for its value in liters and gallons too.
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