Direct conversion
Convert gallon (US) [gal US] to cup (US) [cup US] instantly with formula, examples, chart, and FAQs.
1 gallon (US) [gal US] = 16 cup (US) [cup US]
1 gallon (US) [gal US] = 16 cup (US) [cup US]
Example: 1 gallon (US) [gal US] equals 16 cup (US) [cup US].
Volume conversions use cubic metre as the reference unit. US liquid units, metric litres, and cubic units are converted with fixed factors stored in the unit table.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-08-14.
The US gallon is a liquid volume unit equal to exactly 3.785411784 liters.
HistoryThe US gallon developed from older English wine-gallon measures and differs from the UK imperial gallon.
Current useUS gallons are common for fuel, water, paint, tanks, pools, and household liquid measurements in the United States.
The US cup is a cooking volume unit equal to 236.5882365 milliliters.
HistoryCup measures developed from household cooking measures and were standardized for recipes.
Current useUS cups are used in recipes, nutrition labels, baking, meal preparation, and kitchen measuring tools.
| gallon (US) [gal US] | cup (US) [cup US] |
|---|---|
| 1 | 16 |
| 2 | 32 |
| 5 | 80 |
| 10 | 160 |
| 20 | 320 |
| 25 | 400 |
| 50 | 800 |
| 100 | 1600 |
| 1000 | 16000 |
Use this formula: 1 gallon (US) [gal US] = 16 cup (US) [cup US] Enter your value in the calculator and the result updates instantly.
1 gallon (US) [gal US] equals 16 cup (US) [cup US].
Yes. Use the swap button in the calculator or open the related reverse conversion link when it is listed on this page.