Multiple choice 1000 litres is equal to ______ imperial gallons. 220 280 330 370 Reveal answer Fill a bubble to check yourself A Correct answer Explanation 1 imperial gallon equals approximately 4.546 liters. To convert 1000 liters to imperial gallons: 1000 / 4.546 = 220 gallons. The answer 220 is correct. 280, 330, and 370 are incorrect conversions.