Convert Cubic Feet to Cubic Miles
Convert Cubic Feet (ft³) to Cubic Miles (mi³) instantly and accurately.
Conversion Formula
mi³ = ft³ × 6.793572780e-12
About Cubic Feet
A cubic foot (ft³) is the volume of a cube with sides of one foot (30.48 cm), equal to approximately 28.317 liters. It is widely used in US construction, HVAC engineering, natural gas distribution, and real estate. Natural gas consumption is billed in cubic feet (Ccf = 100 ft³, Mcf = 1,000 ft³); refrigerator, oven, and storage compartment capacity are rated in cubic feet; and concrete or soil orders are quoted in cubic yards or cubic feet. One cubic foot of water weighs approximately 62.4 pounds. Air conditioning units are sized in BTU per hour for room volumes measured in cubic feet.
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
| Cubic Feet (ft³) | Cubic Miles (mi³) |
|---|---|
| 1 ft³ | 6.794 × 10-12 mi³ |
| 2 ft³ | 1.359 × 10-11 mi³ |
| 5 ft³ | 3.397 × 10-11 mi³ |
| 10 ft³ | 6.794 × 10-11 mi³ |
| 25 ft³ | 1.698 × 10-10 mi³ |
| 50 ft³ | 3.397 × 10-10 mi³ |
| 100 ft³ | 6.794 × 10-10 mi³ |