Example:
15 Tm/L = 5.678118e+13 meter per US gallon
1 Tm/L = 3.785412e+12 meter per US gallon | 1 meter per US gallon = 2.641721e-13 Tm/L
Conversion Steps:
15 × (1e+12 / 0.264172052) = 5.678118e+13