Convert Fluid Drams to Firkins
Convert Fluid Drams (fl dr) to Firkins (fir) instantly and accurately.
Conversion Formula
fir = fl dr × 0.0001085069444
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 Largely superseded by millilitres but still appears in traditional compounding recipes, older US pharmacopeias, and historical medical literature. 1 fl dr ≈ 3.697 mL.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 Firkins
A firkin (fir) ≈ 34.07 L (9 US gallons) - the most common cask for British real-ale delivery (9 imperial gallons = 40.91 L). A busy pub cellar cycles through several firkins per week. Craft breweries stage 'firkin tappings' of limited experimental ales. The name comes from Middle Dutch 'vierdekijn' (little fourth), as a firkin was one quarter of a barrel. 1 fir = 9 US gal ≈ 34.07 L.
Quick Reference Table
| Fluid Drams (fl dr) | Firkins (fir) |
|---|---|
| 1 fl dr | 0.000108507 fir |
| 2 fl dr | 0.000217014 fir |
| 5 fl dr | 0.000542535 fir |
| 10 fl dr | 0.00108507 fir |
| 25 fl dr | 0.00271267 fir |
| 50 fl dr | 0.00542535 fir |
| 100 fl dr | 0.0108507 fir |