How to convert TexturePacker's pixel unit in Unity

I am trying to convert pixels in a texture atlas generated by TexturePacker. Right now, since unity doesn’t work in pixels and my atlases are not single rowed to measure the current row position by total rows, I have to convert individual cells locations. I know this is not a never been asked question, but I haven’t really found any solution. And for more information, I don’t like to use other tools like TP extension and such. Thanks.

I’m sorry if I don’t understand your question, but when you go to the texture’s import settings (click on the texture in Project view), there is a “Pixels To Units” parameter set to 100. This means 100 pixels is 1 world unit.