Convert Gallons (US) to Cups (US)
One gallon (US) equals 16 cups (us). Type any value to convert gallons (us) to cups (us) instantly — with a full reference table below.
Convert Gallons (US) to Cups (US)
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How to convert Gallons (US) to Cups (US)
To convert gallons (us) to cups (us), multiply by 16. One gallon (US) equals 16 cup, and one cup (US) equals 0.0625 gal.
- Take the value in gallons (us) — for example 7.5 gal.
- Multiply by 16 (the number of cups (us) in one gallon (US)).
- 7.5 × 16 = 120 cup.
Quick mental estimate: Multiply the number of gallons (us) by 16 — that is exact.
Gallons (US) to Cups (US) conversion table
| Gallons (US) | Cups (US) |
|---|---|
| 1 gal | 16 cup |
| 2 gal | 32 cup |
| 3 gal | 48 cup |
| 4 gal | 64 cup |
| 5 gal | 80 cup |
| 6 gal | 96 cup |
| 8 gal | 128 cup |
| 10 gal | 160 cup |
| 12 gal | 192 cup |
| 16 gal | 256 cup |
| 20 gal | 320 cup |
| 24 gal | 384 cup |
| 32 gal | 512 cup |
| 50 gal | 800 cup |
| 100 gal | 1,600 cup |
| Cups (US) | Gallons (US) |
|---|---|
| 1 cup | 0.0625 gal |
| 2 cup | 0.125 gal |
| 3 cup | 0.1875 gal |
| 4 cup | 0.25 gal |
| 5 cup | 0.3125 gal |
| 6 cup | 0.375 gal |
| 8 cup | 0.5 gal |
| 10 cup | 0.625 gal |
| 12 cup | 0.75 gal |
| 16 cup | 1 gal |
| 20 cup | 1.25 gal |
| 24 cup | 1.5 gal |
| 32 cup | 2 gal |
| 50 cup | 3.125 gal |
| 100 cup | 6.25 gal |
About converting Gallons (US) to Cups (US)
Gallons (US) (gal) and Cups (US) (cup) are both units of volume. The exact factor is 1 gal = 16 cup, so multiply by 16 to go from gallons (us) to cups (us) (or divide to go back).
The conversion runs entirely in your browser. Need the reverse? Use the Cups (US) to Gallons (US) converter, or the full unit converter for every unit at once.
Real-world volume in gallons (us) and cups (us)
| Example | Gallons (US) | Cups (US) |
|---|---|---|
| A US soda can (12 fl oz) | 0.09375 gal | 1.5 cup |
| A wine bottle | 0.198129 gal | 3.170065 cup |
| A US gallon of milk | 1 gal | 16 cup |
| A typical car fuel tank | ≈ 13.2086 gal | ≈ 211.3376 cup |
| A typical bathtub | ≈ 39.62581 gal | ≈ 634.0129 cup |
“≈” marks typical values; the rest are defined or measured figures.
The units
The US liquid gallon: 231 cubic inches, exactly 3.785411784 L. (The UK imperial gallon is larger: 4.54609 L.)
Used for: US fuel and milk.
The US customary cup: 1/16 US gallon, 236.5882365 mL. US nutrition labels use 240 mL; metric cups are 250 mL.
Used for: US recipes.
US customary volumes are exact by definition: the US gallon is 231 cubic inches, which is exactly 3.785411784 litres.