you can use unicode code points:
Superscript digits
\u2070\u00b9\u00b2\u00b3\u2074\u2075\u2076\u2077\u2078\u2079
Subscript digits
U+2080 to U+2089
Example:
var superscriptstring = "C\u2074";
var subscriptstring = "C\u2081";
solved C# – I need to display a variable with an exponential [closed]