Convert Acre-Feet to Cubic Miles
Convert Acre-Feet (ac ft) to Cubic Miles (mi³) instantly and accurately.
Conversion Formula
mi³ = ac ft × 2.959280303e-7
About Acre-Feet
An acre-foot (ac ft) = the volume covering 1 acre to 1 ft depth ≈ 1,233.5 m³ (325,851 US gal). Almost exclusively used in US water resource management. California's Lake Shasta: 4.55 million ac ft at capacity. A typical US household uses ~0.5-1 ac ft/year. Water rights on the Colorado and Sacramento rivers are traded in acre-feet. 1 ac ft ≈ 1,233.5 m³.
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
| Acre-Feet (ac ft) | Cubic Miles (mi³) |
|---|---|
| 1 ac ft | 2.959 × 10-7 mi³ |
| 2 ac ft | 5.919 × 10-7 mi³ |
| 5 ac ft | 1.48 × 10-6 mi³ |
| 10 ac ft | 2.959 × 10-6 mi³ |
| 25 ac ft | 7.398 × 10-6 mi³ |
| 50 ac ft | 1.48 × 10-5 mi³ |
| 100 ac ft | 2.959 × 10-5 mi³ |