Convert US gallons to cups
1 gal (US) = 16 cup (US) · 1 cup (US) = 0.0625 gal (US) · Exact by definition
1 gal (US) = 16 cup (US)
The same value in other units
- millilitre
- 3785.41 ml
- litre
- 3.78541 l
- cubic metre
- 0.00378541 m³
- US fluid ounce
- 128 fl oz (US)
- imperial gallon
- 0.832674 gal (UK)
Settings
Digits kept in the answer. Automatic keeps six, which hides floating-point noise without losing anything real.
Convert a whole list
Paste one conversion per line, written the way you would say it: "5 km to mi". Handy for a column copied out of a spreadsheet.
Volume
US gallons to cups: conversion table
| US gallon | US cup |
|---|---|
| 1 gal (US) | 16 cup (US) |
| 2 gal (US) | 32 cup (US) |
| 3 gal (US) | 48 cup (US) |
| 5 gal (US) | 80 cup (US) |
| 10 gal (US) | 160 cup (US) |
| 20 gal (US) | 320 cup (US) |
| 25 gal (US) | 400 cup (US) |
| 50 gal (US) | 800 cup (US) |
| 100 gal (US) | 1600 cup (US) |
| 250 gal (US) | 4000 cup (US) |
| 500 gal (US) | 8000 cup (US) |
| 1000 gal (US) | 16000 cup (US) |
| US cup | US gallon |
|---|---|
| 1 cup (US) | 0.0625 gal (US) |
| 2 cup (US) | 0.125 gal (US) |
| 3 cup (US) | 0.1875 gal (US) |
| 5 cup (US) | 0.3125 gal (US) |
| 10 cup (US) | 0.625 gal (US) |
| 20 cup (US) | 1.25 gal (US) |
| 25 cup (US) | 1.5625 gal (US) |
| 50 cup (US) | 3.125 gal (US) |
| 100 cup (US) | 6.25 gal (US) |
| 250 cup (US) | 15.625 gal (US) |
| 500 cup (US) | 31.25 gal (US) |
| 1000 cup (US) | 62.5 gal (US) |
How the conversion works
cup (US) = gal (US) × 16
Both units are defined exactly, so the precision of the US gallons to cups result depends only on the number of decimal places you choose.
METHOD AND SOURCES
Where the conversion factors come from
Results are calculated from the unit definitions stored in the converter, not copied from a lookup table. For exact units, every value in the table follows from the same factor shown in the formula above.
- BIPM — SI Brochure
The official definitions of the International System of Units (SI).
- NIST SP 811 — Conversion factors
Conversion-factor tables for SI and non-SI units.
Keep going