--- title: "500 cup to gal = 31.25 gal" description: "500 US cups is 31.25 US gallons. The arithmetic, a table of nearby values, and a converter for any other number." url: https://atoneplace.net/convert/500-cups-to-gallons/ site: "At One Place" --- # 500 cup to gal **500 US cups in US gallons: 500 cup = 31.25 gal** gal = cup × 1/16 500 US cups is 31.25 US gallons. To get there, multiply by 0.0625. ## Values either side *US cups near 500, converted to US gallons.* | US cups | US gallons | | --- | --- | | 250 cup | 15.625 | | 300 cup | 18.75 | | 350 cup | 21.875 | | 400 cup | 25 | | 500 cup ← | 31.25 | | 750 cup | 46.875 | | 1,000 cup | 62.5 | ## How the conversion works The relationship is gal = cup × 1/16. 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. > US gallon: US liquid gallon. The imperial gallon is about 20% larger. ## Common questions ### What is 500 cup in US gallons? 500 cup is 31.25 gal. ### How do you convert US cups to US gallons? Multiply by 0.0625. ## Related pages - [US cups to US gallons](https://atoneplace.net/convert/cups-to-gallons/) - [500 gal to cup](https://atoneplace.net/convert/500-gallons-to-cups/) - [250 cup to gal](https://atoneplace.net/convert/250-cups-to-gallons/) - [300 cup to gal](https://atoneplace.net/convert/300-cups-to-gallons/) - [350 cup to gal](https://atoneplace.net/convert/350-cups-to-gallons/) - [400 cup to gal](https://atoneplace.net/convert/400-cups-to-gallons/) - [750 cup to gal](https://atoneplace.net/convert/750-cups-to-gallons/) - [1,000 cup to gal](https://atoneplace.net/convert/1000-cups-to-gallons/) ## 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/)