meaning - What is the difference between "get my hair cut" or "have my hair cut"

1. I have my hair cut.


2. I get my hair cut.

What is the difference between the two sentences in meaning?

Answer

Both sentences mean that the speaker does not cut his own hair, but has another person do it.

The pattern

{someone} gets|has + {something} + {past participle of a transitive verb} {optional phrase identifying the entity who does the deed}

I get|have my car fixed at that garage.

He gets|has the newspaper delivered.

The unwary king neglects to get|have his food tasted.

The politician got|had his TV commercial aired at prime time in ten major media markets.

Get is felt to be informal.