Buy the right amount of grass seed for a new lawn or an overseed without guessing. Enter your lawn area in square feet and the seeding rate printed on the bag in pounds per thousand square feet, then choose whether you are seeding bare ground or overseeding an existing lawn. New lawns typically need the full recommended rate, while overseeding uses about half, so the calculator applies that adjustment and returns the total pounds of seed to buy. Rates vary widely by grass type, from around three pounds per thousand for fine fescue to eight or more for some ryegrass blends, so always trust the label over any default. The result rounds up so you are never a handful short at the edges. All math runs instantly in your browser with nothing sent to a server.
It multiplies your lawn area by the seeding rate in pounds per unit area to find the total pounds of seed to buy.
Rates vary by grass type, but new lawns often use around 5 to 10 pounds per 1000 square feet, with overseeding using less.
Yes. Overseeding an existing lawn uses a lower rate than seeding bare ground, so pick the rate that matches your job.
Buy the right amount of grass seed for a new lawn or an overseed without guessing. Enter your lawn area in square feet and the seeding rate printed on the bag in pounds per thousand square feet, then choose whether you are seeding bare ground or overseeding an existing lawn.
Yes. Grass Seed Calculator is completely free, with no sign-up and no usage limits.
Yes. Grass Seed Calculator runs in any modern web browser. There is nothing to download or install.
Yes. Grass Seed Calculator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.