that's about the size of it

that's about the size of it

That's the reality of the situation; that's an accurate summary. A: "So, you'll need to start looking for a new house then, huh?" B: "Yep, that's about the size of it." That's about the size of it—we only have the budget to keep one of you on the team.
See also: of, size
Farlex Dictionary of Idioms.

That's about the size of it.

Inf. That is the way it is. (Often a response to someone who has acknowledged bad news.) Bob: We only have a few hundred dollars left in the bank. Sally: That means that there isn't enough money for us to go on vacation? Bob: That's about the size of it. Bob: I'm supposed to take this bill to the county clerk's office and pay them four hundred dollars? Sally: That's about the size of it.
See also: of, size
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

that's about the size of it

That sums up the situation; that's how things are. For example, So he's going to resign next month?-Yes, that's about the size of it, or Mary's applying to all those colleges?-That's about the size of it. A mid-19th century British expression that soon crossed the Atlantic, it appeared in Mark Twain's Tramp Abroad (1880): "'Bloodshed!' 'That's about the size of it,' I said."
See also: of, size
The American Heritage® Dictionary of Idioms by Christine Ammer.

that's about the size of it

said to confirm a person's assessment of a situation, especially one regarded as bad. informal
See also: of, size
Farlex Partner Idioms Dictionary

that’s about the ˈsize of it

(spoken) that is a good or fair description of the situation: ‘So you’re leaving college just to go travelling?’ ‘Yes, that’s about the size of it.’
See also: of, size
Farlex Partner Idioms Dictionary

That’s about the size of it

sent. That is the way things are.; That’s all there is to tell. Well, that’s about the size of it. See you tomorrow.
See also: of, size
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • That’s about the size of it
  • that's more like it
  • that's right
  • that's torn it
  • tear it
  • that tears it
  • That tears it!
  • that's just it
  • that's all
  • don't let the facts get in the way of a good story