Unit Conversion

[Nmr]

Hi guys

plz, apologize me for this silly question... I know that we learn this since secondary school but, i really get confuse about the unit conversion...

So how we can convert 7mg/ml to gr/ml and to gr/l
FYI, my all solution volume is 1.5 L

plz with mathematics explanation

thanxxxxxxxx

[JackBean]

1 g is 1000 mg, thus 1 mg is 0.001 g and consequently 7 mg is 0.007 g. Similarly for volume.

The 7 mg/ml you can read as 7 mg in 1 ml, thus in 1 ml is 7 mg and consequently in 1 l must be 1000-times higher amount, i.e. 7 g

[Nmr]

thanxxxxxxxxxxxxxxxxxxxx