Measure the square footage of your yard by multiplying the length of your yard by the width. Subtract any non-lawn areas, such as driveways, from the calculation. Most grass seeds will cover anywhere from 1 lb. for every 200 square feet to 1 lb. for every 1,000 square feet--check the bag for specific instructions. Use the heaviest coverage recommended on the packaging when seeding a new lawn and the lower coverage when seeding over an existing lawn.
About this Author
Sommer Leigh has produced home, garden, family and health content since 1997 for such nationally known publications as "Better Homes and Gardens," "Ladies' Home Journal," "Midwest Living," "Healthy Kids" and "American Baby." Leigh also owns a Web consulting business and writes for several Internet publications. She has a Bachelor of Science in information technology and Web management from the University of Phoenix.