Convert Fluid Drams to Firkins

Convert Fluid Drams (fl dr) to Firkins (fir) instantly and accurately.

Fluid Drams (fl dr)
Firkins (fir)

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 Largely superseded by millilitres but still appears in traditional compounding recipes, older US pharmacopeias, and historical medical literature. 1 fl dr ≈ 3.697 mL.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 dr0.000108507 fir
2 fl dr0.000217014 fir
5 fl dr0.000542535 fir
10 fl dr0.00108507 fir
25 fl dr0.00271267 fir
50 fl dr0.00542535 fir
100 fl dr0.0108507 fir

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