Belting

Belting is where one carries the chest voice above the natural transition to the head voice. However, this necessitates singing with intensity. For an example, look to Brendon Urie who belts most of his songs.

Hack

Thinking of the pejorative “Woo Girls”, you can get an idea of the upper limit of your pitch for your chest voice by shouting WOO! The pitch should peek in the middle of the woo. You should keep trying to strengthen your larynx muscles until you can sing a sustained note as loud as you can woo.