Volume
qt (US)togal (US)
Convert US liquid quarts (qt (US)) to US gallons (gal (US)).
Factor1 qt (US) = 0.25 gal (US)
Converter
qt (US)
Accepts numbers or expressions, e.g. 150 + 14.7
Result
gal (US)
Rendered to 6 significant figures.
Formula
Formula
gal (US) = qt (US) × 0.25
Multiply any value in US liquid quarts by 0.25 to obtain the value in US gallons.
Worked example
Convert 4 qt (US) to gal (US).
- 01Start with 4 qt (US).
- 02Multiply by the conversion factor: 4 × 0.25 = 1 gal (US).
Result4 qt (US) = 1 gal (US)
Conversion table
| qt (US) | gal (US) |
|---|---|
| 1 | 0.25 |
| 2 | 0.5 |
| 5 | 1.25 |
| 10 | 2.5 |
| 20 | 5 |
| 50 | 12.5 |
| 100 | 25 |
| 200 | 50 |
| 500 | 125 |
| 1000 | 250 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from qt (US) to gal (US)?
1 qt (US) equals 0.25 gal (US). To convert, multiply the value in US liquid quarts by 0.25.
How do I convert 1 qt (US) to gal (US)?
1 qt (US) = 0.25 gal (US). For any value, multiply by 0.25.
How do I convert gal (US) back to qt (US)?
Divide by the same factor — or equivalently, multiply by 4. So 1 gal (US) = 4 qt (US).
When would I need to convert US liquid quart to US gallon?
Volume conversions are used for tank sizing, batch calculations, and bridging between vendor specs (gallons, barrels, ft³) and process documentation (m³, litres).
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).