UK Beer Barrels to Milliliters (bbl (UK) to mL)

1 UK beer barrel equals 163,659.24 milliliters exactly.

1 UK beer barrel = 163,659.24 milliliters

How to convert UK beer barrels to milliliters

To convert UK beer barrels to milliliters, multiply the number of UK beer barrels by 163,659.24. This factor is exact. To go the other way, multiply milliliters by 0.000006110256897 (rounded).

milliliters = UK beer barrels × 163,659.24

Example: 10 UK beer barrels = 1,636,592.4 milliliters.

Pints, quarts, gallons and fluid ounces differ between the US and the UK. Units are labeled 'US' or 'imperial' to avoid confusion.

About these units

UK Beer Barrel (bbl (UK))

Imperial (British)Traditional unit (still used in some regions)

36 imperial gallons (163.66 L). A traditional British beer barrel.

Barrel entered English from medieval French baril, a word of unknown origin. Across medieval Europe barrels ranged from roughly 100 to 1,000 liters depending on place and contents, so the brewer's barrel is only one of many. In British brewing it is fixed at 36 imperial gallons, about 164 liters (163.66 L at the figure used here) or roughly 43 US gallons.

The size matters because the other traditional beer casks are fractions of it. A firkin is a quarter of a barrel at 9 gallons, a kilderkin is half at 18 gallons, and the barrel itself is two kilderkins or four firkins. Today the barrel survives mainly as an accounting unit in brewery statistics rather than as a physical container, since most beer now travels in metal kegs measured in liters.

1 UK beer barrel = 163.65924 liters (exactly).

Sources: Wikipedia: Barrel (unit); Wikipedia: Kilderkin; Wikipedia: Firkin (unit)

Milliliter (mL)

Metric (SI)Current unit

One thousandth of a liter, or exactly 1 cubic centimeter. Used for medicine, cooking and small containers.

Milliliters inherit everything from the liter, since the prefix simply means one thousandth. Because the liter is a cubic decimeter, a milliliter works out to exactly one cubic centimeter, a coincidence the metric system built in on purpose so that volume, length and mass interlock. One milliliter of water has a mass of about one gram, so a dosing syringe, a kitchen scale and a measuring jug can all be checked against one another.

Today milliliters dominate wherever small amounts must be measured precisely: medicine, flavorings, perfume, shampoo and the fine print on drink labels. Spelling is a mild regional split, with uppercase mL preferred in the United States, Canada and Australia and lowercase ml common in the UK and Europe. For scale, a US teaspoon is just under 5 mL, a US tablespoon is about 14.8 mL, and the US nutrition-label cup is exactly 240 mL, so one such cup is 240 of these tiny units.

1 milliliter = 0.001 liters (exactly).

Sources: Wikipedia: Litre; NIST SP 811, Appendix B.8: conversion factors for volume; 21 CFR 101.9: nutrition labeling household measures

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