None. A primer does not contain propellant powder- it contains an explosive that ignites the powder. If you mean how much propellant powder is in a 9mm cartridge, that will depend on which 9mm cartridge (there are nearly a dozen different 9mms) which weight bullet, and which powder. My basic reload data table for 9mm Parabellum (9mm Luger) is 3 pages of data with different powders, bullets, etc. A basic load is 4.5 grains of Bullseye powder with a 115 grain bullet.
5.6 mm
280 mm
The answer is 1,093 mm
1.59 mm
5 mm?
55 mm
4.37 mm
120 mm
304.8 mm
1270 mm
110 mm. 1 cm = 10 mm.
If you have a length of 25 mm and then 12 mm it makes a length of 37 mm.