45 mg = 0.69446 grains
You should calculate this way : 75 mg = 1 ml 45 mg = ? ml ( 45 mg x 1ml ) / 75 mg = 0,6 ml
1.45mg is 0.00145 grams (mg divided by 1,000 = grams)** 1 gram = 1,000mg
Multiply by 1000 = 45000 mg
360 mg
1 gram = 1000 milligram so 45 g = 45000 mg. Simple!
800 mg*1.45 = 1160 mg or 1.16 grams
0.045 g x (1000 mg / 1 g) = 45 mg
1.95652
45
3/4
4.5