Gallons (US) to Quarts (US) Converter
Convert gallons (US) (gal) to quarts (US) (qt) instantly. Type a value above and the result updates while you type. 1 gallon (US) equals 4 quarts (US).
Result updates as you type. Values are calculated locally in your browser — nothing is sent to a server.
The formula
1 gallon (US) = 4 quarts (US)
Multiply the gallons (US) value by 4 to get quarts (US). Or divide by 0.25 to go the other way.
Gallons (US) to quarts (US) conversion table
| gal | qt |
|---|---|
| 1 | 4 |
| 2 | 8 |
| 3 | 12 |
| 4 | 16 |
| 5 | 20 |
| 6 | 24 |
| 7 | 28 |
| 8 | 32 |
| 9 | 36 |
| 10 | 40 |
| 15 | 60 |
| 20 | 80 |
| 25 | 100 |
| 50 | 200 |
| 75 | 300 |
| 100 | 400 |
Worked examples
- 5 gal × 4 = 20 qt
- 30 gal × 4 = 120 qt
- 165 gal × 4 = 660 qt
Conversion factors follow the exact international definitions (SI/BIPM; imperial units per the 1959 International Yard and Pound Agreement, maintained by NIST). NIST unit conversion reference
Factors last verified August 2026 · Built by Jeffrey Tepper.
Frequently asked questions
How many quarts (US) are in 1 gallon (US)?
1 gallon (US) equals 4 quarts (US) (gal → qt).
How do you convert gallons (US) to quarts (US)?
Multiply the number of gallons (US) by 4. For example: 10 gal × 4 = 40 qt.
What is 50 gal in qt?
50 gal equals 200 qt.
Which is bigger: 1 gallon (US) or 1 quart (US)?
1 gallon (US) is bigger: it equals 4 quarts (US).