Gallon (US) to Quart Converter
Convert gallon (us)s to quarts (gal to qt) instantly with this free online volume converter. Enter any value in the Gallon (US) field and get the equivalent in Quart immediately. This converter handles any quantity — from tiny fractions to large numbers — with full precision. No signup, no ads in the widget, and the conversion runs entirely in your browser for instant results.
The conversion factor is exact: 1 gal = 3.999997887 qt. To convert gallon (us)s to quarts, multiply your Gallon (US) value by 3.999997887. For example, 10 gal = 39.99997887 qt. You can also reverse the calculation: 1 qt = 0.2500001321 gal.
Quick conversion table
| Gallon (US) (gal) | Quart (qt) |
|---|---|
| 1 gal | 3.999997887 qt |
| 5 gal | 19.99998943 qt |
| 10 gal | 39.99997887 qt |
| 25 gal | 99.99994717 qt |
| 50 gal | 199.9998943 qt |
| 100 gal | 399.9997887 qt |
Use the swap button to reverse the direction, or choose a different unit from the dropdown menus to convert within the volume category.
Formula
Gallon (US) to Quart conversion: 1 gal = 3.999997887 qt quarts = gallon (us)s × 3.999997887 1 qt = 0.2500001321 gal gallon (us)s = quarts × 0.2500001321
Example
Example: Convert 10 gal to qt: 10 gal × 3.999997887 = 39.99997887 qt So, 10 gal is about 39.99997887 qt. To convert back, multiply by 0.2500001321: 39.99997887 qt × 0.2500001321 = 10 gal.
How to Use
- Enter the value you want to convert in the Gallon (US) field
- The result in Quart appears instantly below
- Use the dropdown menus to change units if needed
- Click 'Swap Units' to reverse the conversion direction
- Copy the result or adjust the input for a new conversion
Frequently Asked Questions
How do I convert gallon (us)s to quarts?
Enter the value in Gallon (US) (gal) in the 'From' field. The equivalent in Quart (qt) appears instantly in the 'To' field. The converter uses precise conversion factors and updates in real time as you type.
What is the formula to convert gal to qt?
1 gal = 3.999997887 qt, so quarts = gallon (us)s × 3.999997887. To convert back, 1 qt = 0.2500001321 gal. The full formula and a worked example are shown on this page.
How many quarts are in one Gallon (US)?
1 gal = 3.999997887 qt.
Is this Gallon (US) to Quart converter free?
Yes, completely free with no signup, no limits, and no ads in the converter widget. You can convert as many values as you need. The tool runs entirely in your browser, so your data never leaves your device.
Can I convert quarts back to gallon (us)s?
Yes. Click the 'Swap Units' button to reverse the direction. You can also use the dropdown menus to select any other volume unit for either field.
How accurate is the gal to qt conversion?
The converter uses high-precision conversion factors (up to 8 decimal places). Results are displayed with up to 6 decimal places, with trailing zeros removed for readability. For scientific or engineering work, always verify with official standards.