How many blocks in a mile?

There is no fixed number of blocks in a mile as it depends on city planning, but in many U.S. cities, especially in areas like Manhattan or Chicago, a general rule of thumb is:

1 mile ≈ 20 city blocks

• This approximation is based on standard block sizes used in grid-like city layouts.
• In other cities, this number may vary — for example, some areas may have 12–16 blocks per mile or even 30.

However, 20 blocks per mile is the commonly accepted average used in most general-purpose estimations, and that makes it the correct answer in this context.

Tip: If you are unsure, always look for the most commonly taught or referenced standard when dealing with general knowledge MCQs.