1. Measure the length and width of the area you wish to calculate. The more precise way to do this is hiring a surveyor to create a detailed schematic for you. However, you also can
http://www.ehow.com/how_8744698_calculatemilesus...

Square meters would be calculated by measuring the length of something in meters and then the width of it in meters and multiplying these two numbers together to get the square meters
http://www.ask.com/webanswers/Reference/Other/how...

Knowing how to calculate square footage will come in handy when it comes time to estimate materials for that next doityourself job. You'll save time, money and extra trips to the
http://www.life123.com/homegarden/buildingrenova...

What is the shape of the area? for a rectangle multiply the length in miles by the width in miles.
http://wiki.answers.com/Q/How_do_you_calculate_are...
