I found this one, but I haven't tested it: https://github.com/eternal-flame-AD/unitdc-rs https://github.com/eternal-flame-AD/unitdc-rs I ran across it because

I found this one, but I haven't tested it: https://github.com/eternal-flame-AD/unitdc-rs https://github.com/eternal-flame-AD/unitdc-rs I ran across it because I wanted to know if dc, the old Unix rpn calculator, could do units.