Apricot Software

Excel Unit Conversion Add-In

ASExcelUnit is a Microsoft Excel Add-in that provides direct conversion of values between any two units (eg. kg and lb). The example below shows a simple scalar conversion of a value specified in inches to its millimetre equivalent.

Scalar Conversion Example

The system entirely removes unit conversion issues from general calculation code - all conversion is done on input and output and the calculation can work in any self-consistent set of units, with no concern as to how the user wishes to input and display the data.

In addition, the approach adopted provides complete flexibility in the units that can be used, and an indefinite number of new units can be added at any time. The system is able to derive new units on the fly, no matter how obsure. These units are broken down using Dimensional Analysis to calculate the conversion factor and to ensure that the conversion is legitimate.

The system is driven by Unicode text files, which you could use to extend the unit classes supported. However, you will probably never need to understand these files, as a comprehensive set of units are already defined.

This Microsoft Add-In provides very powerful unit conversion functionality. The main unit conversion functionality is available as a user defined function. This can be accessed from the Insert Function dialog or by simply typing it into a cell.  It's tight integration with the Excel environment allows easy access through the menus and toolbars.

Excel Menu

You can use the Add-In to build conversion tables for any range of values and sets of units.

Conversion Table

A fully working evaluation is available to download which simply nags you everytime you start Excel. Online help and comprehensive examples are provided to get you up and running as quickly as possible. 

Our latest version is v3. To find out more about the features in this version please click here. Existing v1.x users can upgrade to the latest version by clicking here. v2.x are eligible to a free upgrade to v3, by requesting an activation code from support. You must uninstall existing copies before installing the latest version.

"Your unit conversion add-in for Excel is fantastic and I make heavy use of it. It's a league better than anything else I've tried..." - Andrew, Propulsion Engineer

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