How long will you go to jail for texting while driving?

Answer 1

There are no set sentences for criminal offenses. In this vehicular homicide case, the court would look at the history of the convicted, the facts and circumstances of the event, and relevant state law when deciding on a proper sentence.

Answer 2

Laws and legislation are not universal. Many countries have no regulations on texting whilst driving.

In those that do it is unlikely you will receive a custodial sentence unless there were other more serious consequences of doing so, or you were guilty of multiple offences.

Added: I don't believe that (in the US) there is yet any state that has enacted a state-wide anti-texting law. In some states, local municipalities have enacted such ordnances and they amount to a ticket offense and points on your drivers record.