How to convert us gallons to cups
To convert us gallons to cups, multiply the value by the conversion factor 16. To go the other way, multiply by 0.0625 (or divide by 16).
Worked example: 25 gal to cup
- Write the value: 25 gal
- Multiply by 16: 25 × 16
- Result: 400 cup
US Gallon to Cup (US) conversion table
Quick reference values, rounded to 6 significant digits.
| US Gallon (gal) | Cup (US) (cup) |
|---|---|
| 0.1 gal | 1.6 cup |
| 0.25 gal | 4 cup |
| 0.5 gal | 8 cup |
| 1 gal | 16 cup |
| 2 gal | 32 cup |
| 3 gal | 48 cup |
| 4 gal | 64 cup |
| 5 gal | 80 cup |
| 6 gal | 96 cup |
| 7 gal | 112 cup |
| 8 gal | 128 cup |
| 9 gal | 144 cup |
| 10 gal | 160 cup |
| 12 gal | 192 cup |
| 15 gal | 240 cup |
| 20 gal | 320 cup |
| 25 gal | 400 cup |
| 30 gal | 480 cup |
| 40 gal | 640 cup |
| 50 gal | 800 cup |
| 75 gal | 1,200 cup |
| 100 gal | 1,600 cup |
| 250 gal | 4,000 cup |
| 500 gal | 8,000 cup |
| 1,000 gal | 16,000 cup |
Cup (US) to US Gallon
| cup | gal |
|---|---|
| 1 cup | 0.0625 gal |
| 5 cup | 0.3125 gal |
| 10 cup | 0.625 gal |
| 50 cup | 3.125 gal |
| 100 cup | 6.25 gal |
1 US Gallon in other volume units
About US Gallon and Cup (US)
What is a us gallon (gal)?
A US liquid gallon is exactly 3.785411784 liters, used for fuel and milk in the United States.
What is a cup (us) (cup)?
A US customary cup is about 236.6 mL and is the standard measure in many baking recipes.
Where us gallon to cup (us) conversion is used
Volume conversions are needed for cooking recipes, fuel, water tanks, beverages, medicine and shipping capacity. Converting between us gallons and cups is especially common when you compare products, read foreign specifications, or fill in forms that expect a specific unit.
Need every unit at once? Use the full Volume Converter.
Frequently asked questions
How many cups are in 1 us gallon?
1 US Gallon equals 16 cup.
How do I convert us gallons to cups?
Multiply the number of us gallons by 16. For example, 25 gal × 16 = 400 cup.
What is 25 gal in cup?
25 gal = 400 cup.
How many us gallons are in 1 cup (us)?
1 Cup (US) equals 0.0625 gal. Use the Cup to Gallon converter for the reverse direction.
Is this US Gallon to Cup (US) converter accurate?
Yes. It uses exact internationally defined conversion factors, calculated with full floating-point precision. Results are displayed rounded for readability.