Firkin to Liter Converter
Enter a volume in firkins to convert to litres and gallons.
Result
How to use
- Enter your values in the fields above.
- Press Calculate to see your result instantly.
- Use the Share button to copy a link to your result.
About this calculator
This calculator converts the firkin — a traditional English cask size equal to a quarter of a beer barrel, or 9 imperial gallons — into litres and imperial gallons, using the relationship 1 firkin ≈ 40.9 litres.
The firkin is still a working unit in British and Commonwealth brewing: cask ale is traditionally racked and sold in firkins, so brewers, pub cellar staff and beer enthusiasts encounter it whenever cask conditioning or delivery volumes come up, even though the rest of the world measures beer in litres or standard kegs.
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