Convert US Cup to Litre

Quick answer: US Cup to Litre

1 US Cup = 0.2365882 Litre (US cup → L). To convert us cup to litre, multiply by 0.2365882. To convert litre to us cup, multiply by 4.226753. The converter at the top does this instantly and both ways; the sections below give the formula, worked examples, a full conversion chart and answers to the most common us cup-to-litre questions.

How to convert US Cup to Litre

To convert us cup to litre, multiply the number of us cup by the conversion factor 0.2365882, because 1 US cup = 0.2365882 L. The conversion is linear, so the same factor works for any value — whole numbers, decimals or fractions. For the reverse direction, 1 L = 4.226753 US cup, so you divide by 0.2365882 (or multiply by 4.226753) to turn litre back into us cup.

L = US cup × 0.2365882  ·  US cup = L × 4.226753

1. Write down the value you want to convert, in us cup.
2. Multiply it by 0.2365882.
3. The result is the same area/length/quantity expressed in litre.

US Cup to Litre — worked examples

Each row shows the exact arithmetic so you can follow the conversion step by step. For example, 5 us cup is 1.182941 litre because 5 US cup × 0.2365882 = 1.182941 L.

Common US Cup to Litre conversions

These are the us cup-to-litre values people look up most often. Every figure is computed from the exact factor, so you can rely on them for quick reference:

• 1 us cup = 0.2365882 litre
• 2 us cup = 0.4731765 litre
• 2.5 us cup = 0.5914706 litre
• 3 us cup = 0.7097647 litre
• 4 us cup = 0.9463529 litre
• 5 us cup = 1.182941 litre
• 6 us cup = 1.419529 litre
• 7 us cup = 1.656118 litre
• 8 us cup = 1.892706 litre
• 9 us cup = 2.129294 litre
• 10 us cup = 2.365882 litre
• 12 us cup = 2.839059 litre
• 15 us cup = 3.548824 litre
• 20 us cup = 4.731765 litre
• 25 us cup = 5.914706 litre
• 30 us cup = 7.097647 litre
• 50 us cup = 11.82941 litre
• 75 us cup = 17.74412 litre
• 100 us cup = 23.65882 litre
• 200 us cup = 47.31765 litre
• 500 us cup = 118.2941 litre
• 1000 us cup = 236.5882 litre

US Cup to Litre conversion chart (both directions)

The chart below converts us cup to litre and litre to us cup side by side, so it works whichever way you need. 1 us cup = 0.2365882 litre, and 1 litre = 4.226753 us cup.

US Cup vs Litre: which is bigger?

A litre is the larger unit: one litre equals 4.226753 us cups. Put another way, you need 4.226753 us cups to make a single litre.

What is a US Cup? History, origin and usage

The standardised cooking cup was popularised in the United States by Fannie Farmer, whose 1896 Boston Cooking-School Cook Book championed level, measured quantities instead of vague handfuls. The US customary cup was set at half a US pint, or eight US fluid ounces.

The cup is the backbone of American and Canadian home recipes, used for flour, sugar, liquids and almost everything else, with measuring cups a kitchen staple. Most of the rest of the world weighs dry ingredients instead, finding volume cups less precise for things like flour.

There are several competing cups: the US customary cup of about 237 millilitres, the US legal cup of 240 millilitres used on nutrition labels, and the metric cup of 250 millilitres common in Australia and the UK. This is why carefully following a recipe from another country can still go slightly wrong.

What is a Litre? History, origin and usage

The litre was introduced in France in 1795 as a republican measure equal to one cubic decimetre, its name derived from the older French litron, in turn from Byzantine Greek (where it had been a unit of weight) via Late Medieval Latin. In 1901 the litre was redefined as the volume of one kilogram of pure water at maximum density, making it very slightly larger than a cubic decimetre. In 1964 that awkward definition was abandoned and the litre returned to being exactly one cubic decimetre.

The litre is the everyday metric unit of volume across most of the world: fuel sold at the pump, bottled water and soft drinks, milk, engine and cooking oil, and car engine capacity. It is the unit people reach for whenever a volume is larger than a kitchen spoonful but smaller than a tankful.

The litre is not an official SI unit but is accepted for use alongside it. Its symbol may be written as a capital L precisely because a lowercase l is easily mistaken for the digit 1 in many fonts.

Convert 1 US Cup to other units

It can help to see a us cup next to the other units it is commonly compared with. One us cup (US cup) is equal to:

Convert 1 Litre to other units

One litre (L) is equal to:

Tips for converting US Cup to Litre

• To go from us cup to litre, multiply by 0.2365882; to go back, divide by 0.2365882 (or multiply by 4.226753).
• For a quick mental estimate, remember that 1 us cup ≈ 0.2365882 litre, so 10 us cup ≈ 2.365882 litre.
• The converter above keeps full precision; the tables round for readability, so use the tool for exact figures.
• Both fields update live as you type — change either side to convert in that direction.

How to use this US Cup to Litre converter

Type a number into the US Cup field and the equivalent in Litre appears instantly — there is no “convert” button to press and nothing is sent to a server, so it works offline once the page has loaded and is safe for any data. You can also type into the Litre field to convert the other way (litre to us cup). Use the swap control to flip the two units, and copy the result with a single click. Because the calculation runs in your browser with full floating-point precision, the converter is more exact than the rounded figures shown in the reference chart above — use the chart for quick look-ups and the tool for precise work.

Accuracy and method

Every figure on this page — the formula, the worked examples, the conversion chart and the “convert to other units” tables — is computed from a single verified conversion factor (1 US cup = 0.2365882 L), never copied from a hand-typed lookup table that could drift. That factor is derived from each unit’s definition in terms of a common base unit, and an automated check re-verifies all of the site’s factors on every update, so the numbers here stay correct over time. This matters for us cup-to-litre conversions because a small rounding error in a published table compounds quickly at larger quantities; computing from the exact factor avoids that.

Sources

• NIST Special Publication 811 — Guide for the Use of the SI — publishes the exact metric equivalents of the customary units. The inch, foot, yard and mile are defined exactly in metres by the 1959 international yard-and-pound agreement, so every imperial figure on this page is exact, not rounded.
• BIPM — The International System of Units (SI Brochure) — the defining document for the SI, published by the International Bureau of Weights and Measures. It fixes the base unit that this conversion resolves to, which is why the factor here can be exact rather than approximate.

Watch the system: a <strong>US</strong> gallon, quart, pint and fluid ounce are <strong>not</strong> the same size as the <strong>imperial (UK)</strong> ones — a US gallon is 3.785 L while an imperial gallon is 4.546 L, and a US fluid ounce (29.57 mL) is slightly larger than an imperial fluid ounce (28.41 mL). The units on this page are labelled US or Imperial so the result is unambiguous.

Frequently asked questions

How many litre are in 1 us cup?

1 us cup = 0.2365882 litre (L). To convert any number of us cup to litre, multiply by 0.2365882.

How do I convert us cup to litre?

Multiply the number of us cup by 0.2365882. For example, 10 us cup = 10 × 0.2365882 = 2.365882 litre, and 25 us cup = 5.914706 litre.

How many us cup are in 1 litre?

1 litre = 4.226753 us cup. So to convert litre back to us cup, multiply by 4.226753.

What is the formula to convert us cup to litre?

litre = us cup × 0.2365882. The reverse formula is us cup = litre × 4.226753.

How much is 100 us cup in litre?

100 us cup = 23.65882 litre. (And 1000 us cup = 236.5882 litre.)

Which is bigger, a us cup or a litre?

A litre is larger: 1 litre = 4.226753 us cup.

Is this us cup to litre converter accurate?

Yes — every value is computed from the exact 0.2365882 L per US cup factor (not rounded look-up tables), and the factors are re-verified automatically on every update.

Can I convert litre to us cup too?

Yes. The converter works both ways — enter a value in either field. 1 litre = 4.226753 us cup.

Related volume conversions

• Litre to US Cup
• US Quart to Litre
• Litre to Microlitre
• Microlitre to Litre
• Imperial Fluid Ounce to Litre
• Litre to Imperial Fluid Ounce
• Litre to US Quart
• Litre to Millilitre
• Millilitre to Litre
• Litre to US Gallon

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