What is the difference in meaning between be going to and will with an if-clause in the context of showing someone around? For example:

If you look to the right, you will see an old castle.

If you look to the right, you are going to see an old castle.

2 Answers 2


There is no significant difference in meaning.

The going to version could be considered slightly less formal.


It depends on the situation. "You are going to see" suggests that something is not visible yet (i.e. 'you will soon be able to see'). It would be valid on a bus tour if the castle is not yet visible from the bus, but will be in a moment.

If the castle is visible at the current moment, another option is:

  • If you look to the right, you can see an old castle.

The one with "you will" (or informally, "you'll") is perfectly idiomatic to say in either situation.

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