Convert Imperial Gallons to Cubic Kilometers
Convert Imperial Gallons (UK gal) to Cubic Kilometers (km³) instantly and accurately.
Conversion Formula
km³ = UK gal × 4.546090000e-12
About Imperial Gallons
A US imperial gallon (UK gal) = exactly 8 imperial pints or 10 lb of pure water at 62°F ≈ 4.546 L - about 20% larger than the US liquid gallon (3.785 L). The weight-based definition made it verifiable with simple scales. Still the legal fuel measure in the Cayman Islands and other British Overseas Territories. UK mpg ratings use imperial gallons: 50 UK mpg ≈ 42 US mpg. 1 UK gal ≈ 4.546 L.
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
| Imperial Gallons (UK gal) | Cubic Kilometers (km³) |
|---|---|
| 1 UK gal | 4.546 × 10-12 km³ |
| 2 UK gal | 9.092 × 10-12 km³ |
| 5 UK gal | 2.273 × 10-11 km³ |
| 10 UK gal | 4.546 × 10-11 km³ |
| 25 UK gal | 1.137 × 10-10 km³ |
| 50 UK gal | 2.273 × 10-10 km³ |
| 100 UK gal | 4.546 × 10-10 km³ |