Question 117299
{{{nano = 10^-9}}}
{{{milli = 10^-3}}}

Your conversion is:

{{{(ng/mL) *( mg / (10^6 )ng )* (10^3( mL / L))}}}

or

{{{(ng/mL) / 1000 = mg/L}}}



{{{1mg= 1000000ng}}}

Condiser

 {{{1Kg=1L }}}
or 
{{{1000mg=1000ml}}}...=>...{{{1mg=1ml}}}

Convert 

{{{5mg/325mg}}} to {{{ng/ml}}}

{{{5000000ng /325 ml=15384.61538(ng/ml)}}}