US gallon to cubic kilometer converter (gal to km3)

Conversion Formula

1 gal = 3.79e-12 km3

Step-by-Step Explanation

1. Understand the base relationship:
   1 US Gallon = 0.003785 cubic meters
   1 Cubic Kilometer = 1,000,000,000 cubic meters
2. Establish the conversion factor:
   1 gal = (0.003785 m³) / (1,000,000,000 m³/km3) = 3.79e-12 km3
3. Apply the conversion:
   Multiply the value in gal by 3.79e-12 to get the equivalent in km3

Example Conversion

Convert 5 gal to km3:

5 gal × 3.79e-12 = 1.89e-11 km3