How do I convert US quarts back to US gallons?

Use the reverse converter: 1 US quart equals 0.25 gal.

Is this converter accurate?

Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.

To convert US gallons to US quarts, multiply the value by 4.

qt = gal × 4

90 gal × 4 = 360 qt

US Gallon (gal): Used for fuel and liquids in the United States. Exactly 3.785411784 litres (231 cubic inches).
US Quart (qt): A US liquid unit equal to a quarter of a gallon (0.946352946 L).

How do I convert US gallons to US quarts?: To convert US gallons to US quarts, multiply the value by 4.
How many US quarts are in 1 US gallon?: 1 US gallon equals 4 qt.
How many US quarts are in 10 US gallons?: 10 gal equals 40 qt.
How do I convert US quarts back to US gallons?: Use the reverse converter: 1 US quart equals 0.25 gal.
Is this converter accurate?: Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.