/convert/gallons-to-cups/ Convert US gallons to cups instantly with a reference conversion table. article US gallons to cups Converter — 247QuickTools
👨‍🍳 Cooking & Baking

US gallons to cups Converter

Convert US gallons to cups instantly with a reference conversion table.

Quick answer: To convert US gallons to cups, multiply by 16. For example, 1 US gallons = 16 cups. Use the calculator below for any value.
US gallons to cups
Common conversions
US gallons cups
Formula:

How to convert US gallons to cups

1

Enter your value

Type the number of us gallons you want to convert into the left box. The result in cups appears instantly in the right box. You can also type into the right box to convert in the other direction.

2

Use the swap button

Click the ⇄ Swap button to reverse the conversion — cups to US gallons. Your current value carries across so you don't have to re-enter anything.

3

About US gallons and cups

US gallons and cups are common cooking measurements.

💡 Did you know?

16 cups = 1 US gallon = 3.785 litres. The US and UK gallons diverged in 1824 — the US kept the older 'wine gallon' (231 cubic inches, 3.785 L) while Britain standardised the Imperial gallon at 10 lbs of water (4.546 L), 20% larger.

📊 Common conversions at a glance
US gallons cups
0.0625 1
0.125 2
0.25 4
0.5 8
0.75 12
1 16
Reviewed for 2026. US gallons ↔ cups conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.

Frequently asked questions

How do I convert US gallons to cups?

To convert US gallons to cups, multiply by 16. Or use the calculator above for instant results.

How many cups are in 1 US gallons?

1 US gallons equals 16 cups.

Is the US gallons to cups converter free?

Yes, the US gallons to cups converter is completely free with no sign-up required, no downloads, and it works offline once the page has loaded.