There is no difference, except nobody says 'shall' anymore.

"shall" is an old form of "be." That is the first person (singular and plural) future form.
It is still used in formal legal documents, meaning obligation. You will see it in old texts, too.
Sometimes people will use it for emphasis and formality.

yvWordsmithThere is no difference, except nobody says 'shall' anymore.

Some of us older speakers of BrE still do.

yvWordsmithThere is no difference, except nobody says 'shall' anymore.

Of course they do!

Click here to read dozens of posts on the use of 'shall'.

Rover

While I was in high school back in the Middle Ages, we learned that to be perfectly correct in the future tense, 'shall' was used for 1st person singular and 1st person plural, with 'will' for all the others...the reverse to be emphatic. That led to the debate as to whether MacArthur's shout, "I shall return" was correct because he knew his grammar or incorrect because he should have been emphati

I want to make sure one thing. Is it true that shall doesn't mean should at all? I am very confused since I saw that I should and I shall were basically the same in a grammar book. Thank you

WillPitt I want to make sure one thing. Is it true that shall doesn't mean should at all? I am very confused since I saw that I should and I shall were basically the same in a grammar book. Thank you

That grammar book was wrong. Sorry!

WillPittI saw that I should and I shall were basically the same in a grammar book.

They are not the same at all.
I should get my hair cut today. (It does not mean that I will, but I feel the need to do so.)
I shall get my hair cut today. (I certainly am going to get my hair cut.) Americans don't use "shall" much in conversations. We use "should" a lot