You can convert DEB file to RPM package and RPM to DEB package using alien command, if you have a *.rpm file that you want to install on a Debian or Ubuntu.
Install alien command on Ubuntu as mentioned here:
Now, use alien command to convert rpm to deb file,
Finally, Install deb packages using the dpkg command,
Use alient -r option to convert a deb file to rpm file.
Once you generate the rpm file, you can install it on Red Hat, Fedora or CentOS.
Finally install rpm,
-i = Install RPM
-v = Install in verbose Mode
-h = Print 50 hash marks as the package archive is unpacked