Unit Converter is a Microsoft Excel add-in, with few clicks of mouse you can easily create dropdown boxes of your own choices of units, from large number of units, in excel cells. With another few clicks you can link the dropdown boxes with the cell or ranges of cells. You don't require any knowledge of macro or vba programming to use this add-in. The conversion does so automatically by selecting desired unit from the dropdown box.

Ссылка: http://www.done..s/uc.zip