How long do the police put you in jail for armed robbery if your caught with the weapon and they press charges?

The police only put you in jail to hold you until you go to trial and are convicted. Then you get serious time. The exact time depends on many factors: the state you live in, who you robbed, who you are with, what the weapon is...

Robbery is a felony... which normally includes prison time. The exact times are different for each state, plus the courts decision. Depending on who you robbed, and what weapon you used, etc. the prison sentence may become much larger because of 'enhancements'. Bottom line, you could face 25 to life.......