その店は、ここから100メートルくらい先にあります。って英語でなんて言うの？

"The shop is 100 meters down the road."
Down the road - This means you are close to the location and that it is on the same road as you are on currently.
:
- You could also add additional information by saying
"The shop is 100 meters down the road on the left."
"The shop is 100 meters down the road next to the post office."

Hope this helps!

If you are explaining how far something is from where you are then you would say '..... metres from here' or '.......metres away'
By saying 'about' you are estimating or a rough guess and it's not an exact measurement

Using "approximately" is a formal way to estimate that the shop is one hundred metres away. Instead using "roughly" or "about" is an informal way of estimating the distance as one hundred metres and is more commonly spoken.

In conversation, we often abbreviate 'shop is' to 'shop's' to make it less formal. Instead of 'from here' you can also say 'over that way', which is emphasizing the destination being pointed to rather than the place the speaker is standing.

All three of these sentences explain that the shop is about 100 meters away but in three casual ways.

The first sentence uses the word "only" to say that the store is close by. The second uses the phrase "a short 100 meters" to imply that the store is close.

In the third sentence, I traded out "it" which describes where the store is in relation to the person asking the question. Instead, I used the word "You're" to explain where the store is in relation to the person asking the question.