Haven't tried it yet but cool! Definitely add CK yeah - currently I got through the process of using Bangzero to convert their 34" tensions to various things first haha.
Or I just use this, which is pretty useful because of different unit weights and stuff (bass strings for example)
String Tension
Maybe it already does - I'll see when I try - but it would be cool if your calculator had a place to put in your own unit weight
