Convert Gallons to Firkins
Convert Gallons (gal) to Firkins (fir) instantly and accurately.
Conversion Formula
fir = gal × 0.1111111111
About Gallons
A US gallon (gal) = 4 quarts = 128 fl oz ≈ 3.785 L. Gasoline, milk, water, paint, and pesticides are sold by the gallon in the US. About 20% smaller than the UK imperial gallon (4.546 L) - a critical difference when comparing fuel economy across the Atlantic. 1 US gal = 3.785 L = 4 qt = 128 fl oz.
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
| Gallons (gal) | Firkins (fir) |
|---|---|
| 1 gal | 0.111111 fir |
| 2 gal | 0.222222 fir |
| 5 gal | 0.555556 fir |
| 10 gal | 1.11111 fir |
| 25 gal | 2.77778 fir |
| 50 gal | 5.55556 fir |
| 100 gal | 11.1111 fir |