Example:
15 kilometer per US gallon = 3.962581e-12 Pm/L
1 kilometer per US gallon = 2.641721e-13 Pm/L | 1 Pm/L = 3.785412e+12 kilometer per US gallon
Conversion Steps:
15 × (264.1720524 / 1e+15) = 3.962581e-12