Pre boil gravity

[chopdog]

G'day fellas, could some one tell me my pre boil gravity for the following, I have no brewing program's at the moment as my network is down.
Simple apa 23l batch, 27l pre boil
4.8kg pale malt
.3kg Munich
.2kg wheat
.2kg caraaroma

Cheers for the help

 

[AndrewQLD]

Assuming a 23 lt batch size into fermenter and a 4lt boil off loss I make it 1.050 pre boil.

Oh and a post boil of 1.060