How old do you have to be to get married with or without parental consent and if you are underage how do you go about getting married?

i have heard that Mississippi is the best place.

The laws vary by state, but there is no state in the U.S. that will allow anyone under the age of 18 to get married without parental consent/court approval/special circumstances.

You can get married anywhere in Scotland when you are 16 without parental consent.