--- title: "9 cup to fl oz = 72 fl oz" description: "9 US cups is 72 US fluid ounces. The arithmetic, a table of nearby values, and a converter for any other number." url: https://atoneplace.net/convert/9-cups-to-fl-oz/ site: "At One Place" --- # 9 cup to fl oz **9 US cups in US fluid ounces: 9 cup = 72 fl oz** fl oz = cup × 8 9 US cups is 72 US fluid ounces. To get there, multiply by 8. ## Values either side *US cups near 9, converted to US fluid ounces.* | US cups | US fluid ounces | | --- | --- | | 5 cup | 40 | | 6 cup | 48 | | 7 cup | 56 | | 8 cup | 64 | | 9 cup ← | 72 | | 10 cup | 80 | | 11 cup | 88 | | 12 cup | 96 | | 13 cup | 104 | ## How the conversion works The relationship is fl oz = cup × 8. 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 9 cup in US fluid ounces? 9 cup is 72 fl oz. ### How do you convert US cups to US fluid ounces? Multiply by 8. ## Related pages - [US cups to US fluid ounces](https://atoneplace.net/convert/cups-to-fl-oz/) - [9 fl oz to cup](https://atoneplace.net/convert/9-fl-oz-to-cups/) - [5 cup to fl oz](https://atoneplace.net/convert/5-cups-to-fl-oz/) - [6 cup to fl oz](https://atoneplace.net/convert/6-cups-to-fl-oz/) - [7 cup to fl oz](https://atoneplace.net/convert/7-cups-to-fl-oz/) - [8 cup to fl oz](https://atoneplace.net/convert/8-cups-to-fl-oz/) - [10 cup to fl oz](https://atoneplace.net/convert/10-cups-to-fl-oz/) - [11 cup to fl oz](https://atoneplace.net/convert/11-cups-to-fl-oz/) - [12 cup to fl oz](https://atoneplace.net/convert/12-cups-to-fl-oz/) - [13 cup to fl oz](https://atoneplace.net/convert/13-cups-to-fl-oz/) ## 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/)