Since there is no official mathematical formula, professionals use the following reliable methods:
Before we discuss conversion, you must understand why these two standards exist. pantone tcx to tpx converter
Here is a professional workflow for converting TCX to TPX: pantone tcx to tpx converter
feature (Menu > Convert > Pantone to Pantone) to cross-reference colors between different libraries, such as TCX to TPG/TPX or TCX to Solid Coated. TPX vs. TPG : Note that (Textile Paper eXtended) was replaced by pantone tcx to tpx converter