AlcoDens - Calculations for Spirits Distillers

AlcoDens main screen

The AlcoDens main screen, showing the toolbar buttons which call up the individual calculators. The calculator functions are described below.



Version 3.0 is a free upgrade to all registered users of AlcoDens. See upgrade instructions.

"Harvey: just a note to tell you how much I love Alcodens. Worked perfectly "out of the box" and has become one of the most used and useful tools at my distillery. Thanks for making such a great product! We'd be sunk without it! Regards, David"
Six and Twenty Distillery, Easley, SC, USA



Program Description

AlcoDens is a collection of 6 powerful and flexible calculators designed for distillers, blenders and bottlers of potable alcohol (ethanol). These programs replace the manual calculations that are usually done in conjunction with the TTB Tables, the Practical Alcohol Tables and Ethanol Density Tables. They will give you quick, easy and accurate determinations of your alcohol stocks and calculations of your alcohol blending, proofing, dilution and fortification ratios, plus a few extra calculations that go beyond what the tables can do for you.

Where applicable, the AlcoDens calculators will allow you to specify the strength (concentration) of the alcohol blend using Alcohol Proof, ABV (Volume %), Mass %, Ethanol Density, or Molar %. The data covers temperatures from -20C to 100C (-4F to 212F) and concentrations from 0 to 100% (0 to 200 Proof). All ethanol density and strength data values between -20C and 40C are compliant with the International Alcoholometric Tables (OIML), but can also be expressed on an "in air" basis to make AlcoDens compatible with the TTB Tables used in the USA.

In addition to this flexibility in specifying the alcohol blend strength, AlcoDens has a very wide range of units built in for specifying or calculating the temperatures, masses, volumes and densities.

AlcoDens is designed for mixtures of alcohol and water only. If you need to do calculations for liqueurs that also contain sugar please see AlcoDens LQ.

The six calculators are:

All of the AlcoDens calculators have built-in context sensitive help available at the press of a button. Or if you need more help than that you are welcome to email us for the support you need.


"I have been using version v2.3 regularly for the last couple of months since its release and I find it very quick and easy to do almost any imaginable distillery calculation. The author has been very helpful when I have had queries, and included some extra features I suggested after using v2.2 initially." Peter Bignell
Belgrove Distillery, Kempton, Tasmania



Try AlcoDens for free on your own computer before you buy

Risk Free 30 day money back guarantee Testing the AlcoDens gauging and blending calculator is risk free. Download and test the free, but fully functional, trial version for 15 runs before you make the decision to buy. After your purchase you are covered by our 30 day money back guarantee. No questions asked. And if AlcoDens is upgraded tomorrow you get that free too. In fact all updates released within 12 months of your purchase are yours for free. No risks, just great software.


"Hi Harvey, Just tried the freezing point calculator and it's fantastic! I like the other tools you've added too. Many thanks for the update. Kind regards, Pete"
Selden Research Limited, Derbyshire, UK



AlcoDens Development History

Version 3.0 February 2016 Added "blend by mass in single container" calculator
Added sequential blending facility
Easily determine absolute alcohol content of blend
Added TTB (in air) and OIML (in vacuum) options for determining masses and densities
Allow some data to be hidden on hydrometer correction calculator for clarity
Added calibration factors to hydrometer correction calculator
Allow some data to be hidden on volume correction calculator for clarity
Allow locking of all standard temperatures
Other minor formating and UI changes
Version 2.5 February 2013 Fixed decimal places for density field in strength converter
Version 2.4 January 2013 Easier license installation
Version 2.3 September 2012 Temperature range extended down to -20C
Values between -20C and 40C compliant with International
Alcoholometric Tables (OIML)
Added volume correction calculator
Added freezing point calculator
Improvements to hydrometer correction calculator
Improvements to blending calculator
Version 2.2 July 2009 Added "Proof @60F"
Version 2.1 January 2009 Improved error reporting
Version 2.0 May 2007 Added hydrometer temperature correction calculator
Version 1.0 October 2003 First public release of AlcoDens


"Harvey, ... the end of the process always comes back neatly to the values we need after applying the recommended quantities that AlcoDens comes up with. It has become an integral and indispensable part of our wine batch management. We use it as the basis of all our fortified batches. So thanks a lot, it's a great product! Regards, David"
Ping's Syrups & Wines, Hialeah, FL, USA

AlcoDens in use during blend gauging

AlcoDens in use at Six & Twenty Distillery

AlcoDens isn't only used in the comfort of the office. Here it is being used right on the distillery floor during blend gauging at Six & Twenty Distillery.