Gallons to Quarts Converter
Common Conversions
| gal | qt |
|---|---|
| 0.25 | 1 |
| 0.5 | 2 |
| 1 | 4 |
| 2 | 8 |
| 3 | 12 |
| 5 | 20 |
| 10 | 40 |
| 25 | 100 |
| 50 | 200 |
| 100 | 400 |
| 500 | 2000 |
| 1000 | 4000 |
Why this conversion matters in chemistry
Inside the US customary system, four quarts to a gallon is exact by definition. The conversion comes up most often at the boundary between bulk supply and working portions. A 5-gallon carboy of solvent is 20 quarts, which makes the math for proportional aliquots straightforward without any decimal arithmetic. Gallons travel as bulk-purchase quantities; quarts and pints fit a working stock on the bench. The conversion is decimal-free and easy to memorize, which is most of why US containerization keeps the two units alongside each other.
Formula
Worked Examples
The defining ratio — four quarts to a US gallon, locked exactly by the US customary system.
A standard 5-gallon carboy or pail, the size that's still manageable to lift but hits real bulk-supply scale.
A half-gallon container — about 1.9 L — sized for working stocks of common reagents.
A ten-gallon batch — into pilot-scale territory for any solution prep that began at the bench.