🧪 Volume converter

Gallon to Cup Converter

Convert gallons (gal) to cups (cup) instantly with the exact formula, a conversion table and chart.

gal

Results

Cups
16 cup
Same value in every unit

📊 Gallon to Cup chart

Gallon to Cup — plotted against gallon (gal).

How to convert gallons to cups

To convert gallons to cups, multiply by 16. Volume conversions help with recipes, fuel, beverages, aquariums and laboratory work. US customary units are used here.

cup = gal × 16 gal = cup ÷ 16
Gallon to Cup conversion – gal to cup formula illustration
Gallon (gal) → Cup (cup) at a glance.

Gallon to Cup conversion table

Gallon (gal)Cup (cup)
0.1 gal1.6 cup
0.5 gal8 cup
1 gal16 cup
2 gal32 cup
3 gal48 cup
4 gal64 cup
5 gal80 cup
10 gal160 cup
20 gal320 cup
25 gal400 cup
50 gal800 cup
100 gal1,600 cup
500 gal8,000 cup
1,000 gal16,000 cup

About the units

Gallon (gal)

A US liquid gallon is defined as 231 cubic inches, exactly 3.785411784 liters.

Cup (cup)

A US customary cup is 8 US fluid ounces, about 236.59 mL (nutrition labels round to 240 mL).

How to use this converter

  1. Type the number of gallons (gal) in the input box.
  2. The result in cups appears instantly — no button needed.
  3. See the same value in every other volume unit just below.
  4. Use “Swap units” to convert cups back to gallons.

Tips for better results

  • Double-check which system a unit belongs to (for example US vs UK gallons).
  • Use the swap button to convert in the opposite direction instantly.
  • Bookmark the conversions you use most — each pair has its own page.

Frequently asked questions

How many cups are in one gallon?

One gallon equals 16 cups. 16 is the exact factor used by this converter.

How do I convert gallons to cups?

Multiply the value in gallons by 16. To go the other way, multiply cups by 0.0625.

What is 10 gal in cup?

10 gal = 160 cup. Also, 5 gal = 80 cup and 100 gal = 1,600 cup.

What is the difference between a gallon and a cup?

A US liquid gallon is defined as 231 cubic inches, exactly 3.785411784 liters. A US customary cup is 8 US fluid ounces, about 236.59 mL (nutrition labels round to 240 mL).

Is this tool free and private?

Yes — the Gallon to Cup is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.

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