Convert Imperial Gallons to Cubic Miles
Convert Imperial Gallons (UK gal) to Cubic Miles (mi³) instantly and accurately.
Conversion Formula
mi³ = UK gal × 1.090664993e-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 Miles
A cubic mile (mi³) ≈ 4.168 km³ = 4.168 × 10¹² L. Lake Superior: ~2,900 mi³ (world's largest freshwater lake by surface area). Total volume of all glaciers and ice caps (excl. Antarctica and Greenland): ~170,000 mi³. Volcanic magma chamber sizes and major US aquifer volumes are sometimes quoted in cubic miles in American geoscience literature. 1 mi³ ≈ 4.168 km³.
Quick Reference Table
| Imperial Gallons (UK gal) | Cubic Miles (mi³) |
|---|---|
| 1 UK gal | 1.091 × 10-12 mi³ |
| 2 UK gal | 2.181 × 10-12 mi³ |
| 5 UK gal | 5.453 × 10-12 mi³ |
| 10 UK gal | 1.091 × 10-11 mi³ |
| 25 UK gal | 2.727 × 10-11 mi³ |
| 50 UK gal | 5.453 × 10-11 mi³ |
| 100 UK gal | 1.091 × 10-10 mi³ |