Convert Gallons to Cubic Kilometers
Convert Gallons (gal) to Cubic Kilometers (km³) instantly and accurately.
Conversion Formula
km³ = gal × 3.785411784e-12
About Gallons
A US gallon (gal) = 4 quarts = 128 fl oz ≈ 3.785 L. Gasoline, milk, water, paint, and pesticides are sold by the gallon in the US. About 20% smaller than the UK imperial gallon (4.546 L) - a critical difference when comparing fuel economy across the Atlantic. 1 US gal = 3.785 L = 4 qt = 128 fl oz.
About Cubic Kilometers
A cubic kilometre (km³) = 10⁹ m³ = 10¹² L. Lake Baikal: 23,615 km³ (world's largest freshwater lake by volume). Amazon River discharge: ~6,600 km³/year. Earth's total freshwater: ~35,000,000 km³; oceans: ~1,335,000,000 km³. Glaciologists track polar ice-sheet losses in km³/year as a key climate metric. 1 km³ = 10⁹ m³.
Quick Reference Table
| Gallons (gal) | Cubic Kilometers (km³) |
|---|---|
| 1 gal | 3.785 × 10-12 km³ |
| 2 gal | 7.571 × 10-12 km³ |
| 5 gal | 1.893 × 10-11 km³ |
| 10 gal | 3.785 × 10-11 km³ |
| 25 gal | 9.464 × 10-11 km³ |
| 50 gal | 1.893 × 10-10 km³ |
| 100 gal | 3.785 × 10-10 km³ |