The Geek Stuff posted a guide about converting DEB packages to RPM

Question: I have a *.deb file that I like to install on Red Hat. Is it possible to convert a *.deb to *.rpm package (and vice versa)? Answer: You can use alien command to convert *.deb to *.rpm file.

  How to Convert DEB to RPM (RPM to DEB) Package Using Alien Command