Gallon (US) to Cup (US)Converter
Instantly convert Gallon (US) (gal) to Cup (US) (cup). Free, accurate, and easy to use.
How to Convert Gallon (US) to Cup (US)
To convert Gallon (US) (gal) to Cup (US) (cup), multiply your value by 16.00000845.
Example: 5 gal × 16.00000845 = 80.00004227 cup
What is a Gallon (US)?
The US liquid gallon equals 128 fluid ounces, 8 pints, or approximately 3.785 liters. It is the standard unit for fuel, water, and large liquid volumes in the United States. The UK imperial gallon is larger at approximately 4.546 liters — about 20% more. The gallon difference is a common source of confusion for international recipes and fuel economy figures.
What is a Cup (US)?
The US cup equals exactly 8 US fluid ounces or approximately 236.588 milliliters. It is the foundation of most American baking recipes and is measured with standardized cup-shaped tools. The metric cup used in some countries equals 250 mL. There are 2 cups in a US pint, 4 in a quart, and 16 in a gallon.
Gallon (US) to Cup (US) Conversion Table
| Gallon (US) (gal) | Cup (US) (cup) |
|---|---|
| 0.001 gal | 0.01600001 cup |
| 0.01 gal | 0.16000008 cup |
| 0.1 gal | 1.60000085 cup |
| 0.5 gal | 8.00000423 cup |
| 1 gal | 16.00000845 cup |
| 2 gal | 32.00001691 cup |
| 5 gal | 80.00004227 cup |
| 10 gal | 160.00008454 cup |
| 20 gal | 320.00016907 cup |
| 50 gal | 800.00042268 cup |
| 100 gal | 1600.00084535 cup |
| 200 gal | 3200.0016907 cup |
| 500 gal | 8000.00422676 cup |
| 1000 gal | 16000.00845351 cup |
| 5000 gal | 80000.04226757 cup |
| 10000 gal | 160000.08453514 cup |
| 50000 gal | 800000.42267571 cup |
| 100000 gal | 1600000.84535141 cup |
| 1000000 gal | 16000008.45351413 cup |
| 1000000000 gal | 1.6000e+10 cup |
Frequently Asked Questions
How do I convert Gallon (US) to Cup (US)?
Multiply the Gallon (US) value by 16.00000845. Formula: cup = gal × 16.00000845. Example: 10 gal = 160.00008454 cup.
How many Cup (US) are in one Gallon (US)?
One Gallon (US) (gal) equals 16.00000845 Cup (US) (cup).
How many Gallon (US) are in one Cup (US)?
One Cup (US) (cup) equals 0.06249997 Gallon (US) (gal).
What is the exact conversion factor from Gallon (US) to Cup (US)?
The conversion factor is 16.00000845. Multiply any gal value by this number to get cup. For the reverse, multiply by 0.06249997.
How do I convert Cup (US) back to Gallon (US)?
Divide by 16.00000845, or equivalently multiply by 0.06249997. Formula: gal = cup ÷ 16.00000845.
Is the Gallon (US)-to-Cup (US) conversion internationally standardized?
Yes. Both units are defined by international standards (SI or the international yard/pound agreement), so the conversion factor 16.00000845 is exact and universally agreed upon.