--- title: "1 cup to L = 0.23659 L" description: "1 US cup is 0.23659 liters. The arithmetic, a table of nearby values, and a converter for any other number." url: https://atoneplace.net/convert/1-cups-to-liters/ site: "At One Place" --- # 1 cup to L **1 US cup in liters: 1 cup = 0.23659 L** L = cup × 0.2365882365 1 US cup is 0.23659 liters. To get there, multiply by 0.2365882365. ## Values either side *US cups near 1, converted to liters.* | US cups | Liters | | --- | --- | | 0.5 cup | 0.11829 | | 1 cup ← | 0.23659 | | 1.5 cup | 0.35488 | | 2 cup | 0.47318 | | 2.5 cup | 0.59147 | | 3 cup | 0.70976 | ## How the conversion works The relationship is L = cup × 0.2365882365. Both units measure volume, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two. > US cup: US legal cup is 240 mL; the customary cup used here is 236.588 mL. ## Common questions ### What is 1 cup in liters? 1 cup is 0.23659 L. ### How do you convert US cups to liters? Multiply by 0.2365882365. ## Related pages - [US cups to liters](https://atoneplace.net/convert/cups-to-liters/) - [1 L to cup](https://atoneplace.net/convert/1-liters-to-cups/) - [0.5 cup to L](https://atoneplace.net/convert/0-5-cups-to-liters/) - [1.5 cup to L](https://atoneplace.net/convert/1-5-cups-to-liters/) - [2 cup to L](https://atoneplace.net/convert/2-cups-to-liters/) - [2.5 cup to L](https://atoneplace.net/convert/2-5-cups-to-liters/) - [3 cup to L](https://atoneplace.net/convert/3-cups-to-liters/) ## Sources - Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)] - The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure) - Calculated on this page — At One Place (/about/)