Convert Firkins to Fluid Drams
Convert Firkins (fir) to Fluid Drams (fl dr) instantly and accurately.
Conversion Formula
fl dr = fir × 9216
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.
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 Largely superseded by millilitres but still appears in traditional compounding recipes, older US pharmacopeias, and historical medical literature. 1 fl dr ≈ 3.697 mL.
Quick Reference Table
| Firkins (fir) | Fluid Drams (fl dr) |
|---|---|
| 1 fir | 9216 fl dr |
| 2 fir | 18432 fl dr |
| 5 fir | 46080 fl dr |
| 10 fir | 92160 fl dr |
| 25 fir | 230400 fl dr |
| 50 fir | 460800 fl dr |
| 100 fir | 921600 fl dr |