'Convict' refers to someone who has been found guilty in a criminal court (ie convicted of a criminal offence), whereas 'inmate' refers to anyone, including unconvicted prisoners, in prison. An example of an unconvicted prisoner would be someone remanded (held in custody) awaiting trial.

Usually, if you are inside a prison (for example a warden), or need to distinguish between different types of people inside a prison, you would call people who are imprisoned - inmates. However, for regular people, these two words can be used interchangeably.

Yes you can. makes sense!