US Gallons to US Cups
1 us gallon = 15.7725 us cups (cup)
Convert us gallons to us cups instantly. 1 us gallon = 15.7725 us cups. Free, accurate, with conversion table and formula.
US Gallon (gal)
US Cup (cup)
| Unit | 1 gal equals |
|---|---|
| Milliliter (ml) | 3,785.41 |
| Liter (L) | 3.78541 |
| Cubic Meter (m³) | 0.00378541 |
| Cubic Centimeter (cm³) | 3,785.41 |
| US Teaspoon (tsp) | 768 |
| US Tablespoon (tbsp) | 255.999 |
| US Fluid Ounce (fl oz) | 128 |
| US Cup (cup) | 15.7725 |
| US Pint (pt) | 8 |
| US Quart (qt) | 4 |
| US Gallon (gal) | 1 |
| Imperial Gallon (imp gal) | 0.832674 |
How to convert us gallons to us cups
- 1Take your value in us gallons (gal).
- 2Multiply by 15.7725.
- 3The result is your value in us cups (cup).
US Gallons to US Cups conversion table
| US Gallons (gal) | US Cups (cup) |
|---|---|
| 1 | 15.7725 |
| 2 | 31.5451 |
| 5 | 78.8627 |
| 10 | 157.725 |
| 25 | 394.314 |
| 50 | 788.627 |
| 100 | 1,577.25 |
| 250 | 3,943.14 |
| 500 | 7,886.27 |
| 1,000 | 15,772.5 |
Frequently asked
How many us cups are in a us gallon?
1 us gallon equals 15.7725 us cups (cup).
How do I convert us gallons to us cups?
Multiply the number of us gallons by 15.7725 to get us cups.
What is 10 us gallons in us cups?
10 gal equals 157.7 cup.
What is 100 us gallons in us cups?
100 gal equals 1,577 cup.
How do I convert us cups back to us gallons?
Multiply us cups by 0.0634013 (the reciprocal) or use the swap button above.
Where you'll actually use this
Volume measures three-dimensional capacity — how much liquid a container holds or how much space an object occupies. Metric uses liters and milliliters; imperial uses gallons, quarts, pints, cups, and fluid ounces.
- Cooking
US recipes use cups and tablespoons; metric recipes use ml. A US cup is 236.6 ml — not 250 ml as in metric cups.
- Fuel
Pump prices show gallons in the US, liters almost everywhere else.
- Beverages
A US fluid ounce (29.57 ml) is slightly smaller than a UK fluid ounce (28.41 ml).
Common mistakes to avoid
- US gallon ≠ UK gallon
A US gallon is 3.785 L, a UK (imperial) gallon is 4.546 L — about 20% larger.
- Cups aren't universal
US cup = 236.6 ml. UK cup = 284 ml. Metric cup = 250 ml. Match the recipe origin.
Did you know?
At 4 °C exactly one liter of pure water weighs one kilogram — the original metric definition.
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