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US Cup to Liter Converter

Convert US Cup to Liter — free, instant, accurate. Part of Volume converters.

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Unit Converter

1 US Cup = 0.236588125 Liter

When to use the US Cup to Liter converter

  • Recipe conversion — cups, millilitres, and fluid ounces for international cooking.
  • Fuel economy — comparing miles-per-gallon (US vs imperial) and litres-per-100 km.
  • Brewing and bartending — switching pints, half-pints, and millilitres.
  • Chemistry and lab work — precise mL-to-cubic-cm conversions.

A short history of volume units

Volume units split into two main families: metric (litre, derived from the cubic decimetre) and imperial (gallon, quart, pint, fluid ounce). The litre was defined in 1795 alongside the metre. The US gallon (231 cubic inches, 3.785 L) and the imperial gallon (4.546 L) diverged after the UK redefined its gallon in 1824, which is why an American pint is 473 mL and a British pint is 568 mL.

Common mistakes when converting volume

US vs imperial gallon

A US gallon is about 16% smaller than an imperial gallon. A car rated 30 US mpg is roughly 36 imperial mpg.

Fluid ounce vs ounce

A fluid ounce is a volume; an ounce is a weight. They are different quantities and only match for water at specific conditions.

Confusing cubic centimetre with millilitre rules of thumb

1 cm³ equals 1 mL exactly — this is by definition, not approximation.

Frequently asked questions

How do I convert US Cup to Liter?+
Enter your US Cup value into the converter above and the equivalent in Liter appears instantly. The page also shows the exact formula in the Formula card so you can reproduce the calculation by hand or in a spreadsheet.
Is the US Cup to Liter converter accurate?+
Yes. Conversions use the official volume factor as published by NIST and BIPM, with full floating-point precision. Results are only rounded for display.
Can I share or bookmark a specific US Cup to Liter value?+
Yes. Add ?v=YOUR_VALUE to the URL (for example /volume/us-cup-to-liter?v=100) and the converter pre-fills with that input.
Does Converterse work offline?+
Yes. The site is a Progressive Web App (PWA), so once you have visited any converter page it will keep working without an internet connection.
Is the US Cup to Liter converter free?+
Yes. Every converter on Converterse is free to use, with no sign-up, no usage limits, and no paywall. The site is supported by display advertising.

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