Volume Converter

Convert between liters, milliliters, cubic meters, cups, fluid ounces, pints, quarts, gallons and cubic volumes.

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Liters to Gallons (US) Gallons (US) to Liters Milliliters to Fluid Ounces (US) Cups (US) to Milliliters Quarts (US) to Liters Gallons (US) to Cups (US)

Formula

gal = cup × 0.0634012926

Example

Example: convert 20 US cups to gallons.

20 cup = 1.26802585 gal

Conversion table

US cups (cup) gallons (gal)
1 cup 0.06340129 gal
2 cup 0.12680259 gal
5 cup 0.31700646 gal
10 cup 0.63401293 gal
20 cup 1.26802585 gal
50 cup 3.17006463 gal
100 cup 6.34012926 gal

Explanation

US liquid gallons are commonly used for fuel and larger liquid volumes in the United States.

How to convert US cups to gallons

  1. Start with the value in US cups (cup).
  2. Multiply it by 0.0634012926.
  3. The result is the measurement in gallons (gal).

Example: 20 cup → 1.26802585 gal

Frequently Asked Questions

How much is 20 US cups in gallons?

20 US cups is about 1.268026 gallons.

How many gallons is 1 US cup?

1 US cup is about 0.063401 gallons.

How many US cups is 1 gallon?

1 gallon is about 15.772549 US cups.

What is the difference between US cups and gallons?

Both measure volume within the same system. The main difference is usually scale: gallons are used for larger volumes and US cups for smaller ones.

Where are US cups and gallons used?

In practice, US cups are commonly used in recipes and cooking (cups), while gallons are commonly used in the US for fuel and larger liquid volumes.

Why does 1 US cup equal 0.063401 gallons?

Because the units are defined with a fixed relationship. To convert US cups to gallons, multiply by that factor.