Calculating code score strings for PHP, MySQL, HTML web application from function points

We need to convert our function point evaluation to a line of code evaluation for our web application that uses HTML5, PHP, MySQL, and CSS3.

The total number of functional points in which we found ourselves was 1727.24. What would be the best approach? All we can find are ways to convert client programs (like C ++, Perl programs, etc.) Feature point scores to LOC applications.

It would also be helpful to get a link to a useful website.