This is a tool that calculates how many units of alcohol are consumed on a periodic basis.

In more detail, the tool calculates the number of units consumed on a daily, monthly, weekly and annual basis for each relevant alcohol type, as well as the combined number of units for each period, and displays the results in a table.

For this tool, the standard UK definition unit of alcohol is used, i.e. one unit of alcohol is defined as 10 millilitres of pure alcohol.

The information required for the calculations is grouped by alcohol type in a table with one row per type. It is only necessary to enter the data for the relevant alcohol types; the other type data can be left empty.

There are eight alcohol types shown: beer, cider (including perry), wine, sparkling wine, fortified wine (e.g. port), alcopops, spirits and liqueurs.

Each relevant alcohol type requires the following compulsory information:

• The amount of consumed alcohol in terms of the measure type, e.g. 2 pints of beer or 3 small glasses of wine.
• The alcohol measure type, with the choice of options depending on the type of alcohol, e.g. pints of cider or bottles of alcopops. For each option, the associated amount in millilitres is also displayed. One option is available for every alcohol type and that is litres, since this is the default option if none of the other choices applies.
• The period for the measured alcohol consumption, which can be daily, weekly, monthly or annual, e.g. 2 pints of beer on a daily basis.
• The average strength of the alcohol consumed as a standard ABV (Alcohol by Volume) value. This is usually expressed in percentage terms (unless the formatting is explicitly set to express it as a decimal).

Associated tool link: http://www.coggit.com/tools/units_of_alcohol.html