Gallon (US) to Quart (US)
1 gal = 4 qt
Convert Gallon (US) (gal) to Quart (US) (qt) with engineering-grade precision. Instant results, formula, and reference table below.
1 Gallon (US) ≈4 Quart (US)
How to convert Gallon (US) to Quart (US) (gal to qt)
Converting Gallon (US)s to Quart (US)s is critical for developers working with international data standards or scientific applications. This tool performs the calculation entirely on your client (browser) using JavaScript/WASM, ensuring zero latency and maximum privacy.
The Formula
1 gal = 4.00000 qt
Calculation Example
Let's say you want to convert 5 gal to qt:
- Input: 5 gal
- Calculation: 5 × 4.00000
- Result: 20.0000 qt
About the Gallon (US) to Quart (US) conversion
The conversion factor from Gallon (US) (gal) to Quart (US) (qt) is 4, meaning 1 gal = 4 qt and inversely 1 qt = 0.25 gal. That makes the Gallon (US) the larger of the two units in the volume category, where the SI base unit is the liter. Every ratio here is derived from the SI/international definition rather than a rounded approximation, so results are stable across repeated conversions.
Need the reverse? Use the Quart (US) to Gallon (US) converter.
Frequently Asked Questions
How do I convert Gallon (US) to Quart (US)?
To convert Gallon (US) to Quart (US), you need to multiply the gal value by 4.00000.
What is the formula for gal to qt?
The simple formula is: qt = gal × 4.00000.
Which is bigger: Gallon (US) or Quart (US)?
A Gallon (US) is bigger. One Gallon (US) is equal to approx 4.0000 Quart (US)s.
How many Gallon (US)s are in one Quart (US)?
There are approximately 0.250000 Gallon (US)s in one Quart (US).
Quick Conversion Table
| gal | qt |
|---|---|
| 1 | 4.0000 |
| 5 | 20.0000 |
| 10 | 40.0000 |
| 20 | 80.0000 |
| 50 | 200.0000 |
| 100 | 400.0000 |