It depends. Wifi signals are effectively radio signals, so the range of the signal depends on a lot of environmental factors. The advertised ranges you see are under ideal circumstances, like you're outside in the middle of a big open flat plane with nothing to obstruct the signal.
Once you deviate from that, the range starts going down the more impediments to the signal get in the way. So every wall, piece of furniture, closed door, even window, will reduce the range of the signal. Just how much depends on the material of the impediment, so I think by now it's becoming rather clear why there's just not much we can tell you. Even if you and your neighbor had a house with exactly the same materials used in construction and an identical floor plan, your neighbor might get better/worse reception because of the way they chose to decorate.
You can try moving the wireless router a bit. Generally putting it up fairly high where it's free of obstructions will help, but I wouldn't expect miracles. You may have to look into getting a repeater, or just give up on using the wireless signal more than a couple of meters away from the router.
can someone please help. i've got a 12 month old acer aspire 5942g and ROUTER is a SAGEM from SKY BROADBAND(the gray one with the dimples).
i have a wifi range of no more than 5 meters, but i am desparat to use a tablet in my garden area approx. 20 meters away.i am near suicide as i am not even able to use wifi connection with my printer. so can YOU tell a total useless pc-user like me how enjoy the benefits of a pc/table in his retirement age.