Convert Fluid Drams to Acre-Feet
Convert Fluid Drams (fl dr) to Acre-Feet (ac ft) instantly and accurately.
Conversion Formula
ac ft = fl dr × 2.996956325e-9
About Fluid Drams
A fluid dram (fl dr, also 'drachm') = 1/8 fl oz ≈ 3.697 mL. Used by apothecaries for precise medicinal compounding; a fluid dram divided into 60 minims. Largely superseded by millilitres but still appears in traditional compounding recipes, older US pharmacopeias, and historical medical literature. 1 fl dr ≈ 3.697 mL.
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.
Quick Reference Table
| Fluid Drams (fl dr) | Acre-Feet (ac ft) |
|---|---|
| 1 fl dr | 2.997 × 10-9 ac ft |
| 2 fl dr | 5.994 × 10-9 ac ft |
| 5 fl dr | 1.498 × 10-8 ac ft |
| 10 fl dr | 2.997 × 10-8 ac ft |
| 25 fl dr | 7.492 × 10-8 ac ft |
| 50 fl dr | 1.498 × 10-7 ac ft |
| 100 fl dr | 2.997 × 10-7 ac ft |