Hello everyone, I developed a paid spreadsheet add-on using this JavaScript module as it's primary engine. However, that add-on tanked (no interest), so I figured it would be fun to open source this incredibly useful library for everyone to use. IMHO it improves upon the existing libraries of this type as it is smaller, simpler to use and avoids the problem of "unit collisions" by using a strictly defined unit format. Please check it out and let me know what you think!