How many millilitres are in a cup?

One US cup equals 236.588 millilitres. This is the standard used in US recipes and nutrition labelling.

What is the difference between a US gallon and a UK gallon?

A US gallon equals 3.785 litres, while a UK (imperial) gallon equals 4.546 litres. The UK gallon is about 20% larger. This difference matters significantly when comparing fuel prices or volumes across countries.

How many teaspoons are in a tablespoon?

There are exactly 3 teaspoons in 1 tablespoon in both US and metric cooking measurements. One US tablespoon is approximately 14.787 millilitres.

What is a fluid ounce and how does it differ from a weight ounce?

A fluid ounce measures volume (approximately 29.574 ml in the US system), while a weight ounce measures mass (approximately 28.35 g). They are different quantities and should not be confused.

How do I convert litres to cubic metres?

One cubic metre equals exactly 1000 litres. To convert litres to cubic metres, divide by 1000. For example, 250 litres = 0.25 cubic metres.

Conversions

↵ to calculate

Volume Converter - Liters Gallons Cups ML Conversion

Convert between millilitres, litres, cubic metres, teaspoons, tablespoons, cups, pints, quarts, gallons, and more.

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How to use this calculator

👉 Fill in the boxes below and your answer appears instantly — no maths needed, we do it all for you! 🎉

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In plain English — what does this do?

📏 Some countries say ‘30 degrees’ and others say ‘86 degrees’ for the same weather! Some say ‘5 km’, others say ‘3 miles’. This tool swaps between them instantly so you always know what it means.

📌 Direct Answer & Summary

A volume converter lets you convert between liquid and capacity units across metric and US customary systems. Volume units are essential in cooking, chemistry, medicine, and fluid engineering. The metric system uses litres and millilitres, while US recipes use cups, fluid ounces, and gallons — conversions between them are required whenever working across regions.

Value

From

What is Volume Converter - Liters Gallons Cups ML Conversion?

How to use it

1️⃣ Enter the volume value you want to convert in the Value field.
2️⃣ Select the source unit from the From dropdown.
3️⃣ Select the target unit from the To dropdown.
4️⃣ The converted result appears instantly along with a full conversion table.
5️⃣ Use the swap button to reverse the conversion direction.

Formula

converted = input_value * (factor_of_from_unit / factor_of_to_unit), where all factors are expressed relative to litres

💡 See it in action — a real example

To convert 2 US cups to millilitres: 2 cups × 236.588 ml/cup = 473.176 ml. To convert that to fluid ounces: 473.176 ml / 29.5735 ml/fl_oz = 16 fl oz.

❓ Common questions

How many millilitres are in a cup?: One US cup equals 236.588 millilitres. This is the standard used in US recipes and nutrition labelling.
What is the difference between a US gallon and a UK gallon?: A US gallon equals 3.785 litres, while a UK (imperial) gallon equals 4.546 litres. The UK gallon is about 20% larger. This difference matters significantly when comparing fuel prices or volumes across countries.
How many teaspoons are in a tablespoon?: There are exactly 3 teaspoons in 1 tablespoon in both US and metric cooking measurements. One US tablespoon is approximately 14.787 millilitres.
What is a fluid ounce and how does it differ from a weight ounce?: A fluid ounce measures volume (approximately 29.574 ml in the US system), while a weight ounce measures mass (approximately 28.35 g). They are different quantities and should not be confused.
How do I convert litres to cubic metres?: One cubic metre equals exactly 1000 litres. To convert litres to cubic metres, divide by 1000. For example, 250 litres = 0.25 cubic metres.

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