What is the conversion factor between liters and gallons?

What is the conversion factor between liters and gallons?

• A. 0.264 gallons
• B. 1 liter
• C. 3.8 liters
• D. 3.785 liters

Answer: (D)

The main idea is how many liters are in a gallon, i.e., the conversion factor between the two units. For the US gallon, 1 gallon equals about 3.785 liters. So 3.785 liters per gallon is the correct factor to use when converting gallons to liters. If you’re going the other way, from liters to gallons, you’d multiply by the reciprocal, about 0.264 gallons per liter. For example, 5 gallons ≈ 5 × 3.785 = 18.925 liters, and 5 liters ≈ 5 × 0.264 ≈ 1.32 gallons.

The main idea is how many liters are in a gallon, i.e., the conversion factor between the two units. For the US gallon, 1 gallon equals about 3.785 liters. So 3.785 liters per gallon is the correct factor to use when converting gallons to liters. If you’re going the other way, from liters to gallons, you’d multiply by the reciprocal, about 0.264 gallons per liter. For example, 5 gallons ≈ 5 × 3.785 = 18.925 liters, and 5 liters ≈ 5 × 0.264 ≈ 1.32 gallons.