Which bigger: 66 qt or 18 gallons? (66 qt to gal Conversion)
Which is Bigger: 66 qt or 18 gallons? (Answer, Conversion, and Convert 66 Quarts To Gallons) 18 gallons (gal) is bigger than 66 qt (quarts). Gallons and quarts are units of measurement for volume, with 1 gallon equalling 4 quarts. Since 1 gallon = 4 quarts, 66 quarts equals 16.5 gallons (66/4=16.5), and 18 gallons …