US gallons to US cups
US cups = US gallons × 16
Reverse: US cups to US gallons
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How to convert US gallons to US cups
One US gallon is 16 US cups, so multiply the number of US gallons by 16. For example, 20 US gallons is 20 × 16 = 320 US cups. To go back, divide by the same number, or multiply by 0.0625.
Quick estimate
Multiplying by about 20 gets within 25.0% of the exact answer, which is enough to check that a result makes sense.
Where it comes up
Volume conversions come up in recipes, fuel economy, drink and bottle sizes, garden and pool water, and engine sizes.
| US gallons | US cups |
|---|---|
| 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 |
| 11 gal | 176 cup |
| 12 gal | 192 cup |
| 13 gal | 208 cup |
| 14 gal | 224 cup |
| 15 gal | 240 cup |
| 16 gal | 256 cup |
| 17 gal | 272 cup |
| 18 gal | 288 cup |
| 19 gal | 304 cup |
| 20 gal | 320 cup |
| 25 gal | 400 cup |
| 30 gal | 480 cup |
| 40 gal | 640 cup |
| 50 gal | 800 cup |
| 60 gal | 960 cup |
| 70 gal | 1,120 cup |
| 75 gal | 1,200 cup |
| 80 gal | 1,280 cup |
| 90 gal | 1,440 cup |
| 100 gal | 1,600 cup |
| 120 gal | 1,920 cup |
| 150 gal | 2,400 cup |
| 200 gal | 3,200 cup |
| 250 gal | 4,000 cup |
| 300 gal | 4,800 cup |
| 400 gal | 6,400 cup |
| 500 gal | 8,000 cup |
| 750 gal | 12,000 cup |
| 1,000 gal | 16,000 cup |
| 1,500 gal | 24,000 cup |
| 2,000 gal | 32,000 cup |
| 5,000 gal | 80,000 cup |
| 10,000 gal | 160,000 cup |
Questions
How many US cups are in a US gallon?
16 US cups.
How do I convert US gallons to US cups in a spreadsheet?
Put the value in A1 and type =A1*16, then fill the formula down the column.
Are the values in the table exact?
They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.