Well the well known way to do that is using the stream operator :
#include <sstream> std::ostringstream s; int i; s << i; std::string converted(s.str()); Of course you can generalize it for any type using a template function ^^
#include <sstream> template<typename T> std::string toString(const T& value) { std::ostringstream oss; oss << value; return oss.str(); }