HT1515 What is the effective range, in square foot, for AirPort Express?

I wanna know what is the effective wifi range, in square foot, of Airport Express?

Unfortunately, questions like this are really impossible to answer.
The AirPort Express has an effective range of about 150 feet......so, if the Express is located in the middle of a large aircraft hanger, with no obstructions in the signal path in any direction, then you could expect the signal from the Express to cover about 71,000 square feet.
But, chances are, your home is constructed a bit differently.
Without knowing the exact layout of your home...and the exact construction type of your home....the type of insulation used in the walls, how many floors you have, and countless other variiables.....it would be impossible to guess whether a signal Express would be adequate for your use, if that is what you are asking.
To give you an example, my home is about 2400 square feet, single level. It tekes three (3) AirPort routers to get good coverage throughout the house and out to the patio area. Your home might require more, or less.

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HT1515 What is the effective range, in square foot, for AirPort Express?

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