Ryan turf renovation equipment is transitioning to the Bobcat brand. Click here to learn more.

Seed Calculator

Want to know how much grass seed to buy? Use this handy seed calculator to help you estimate the amount of grass seed you’ll need for the job.

Person operating a Lawnaire ZTS Stand-On Aerator with Spreader Attachment

Seed Calculator

+ Add an additional Seeding Area

(See packaging for details)

Please note: This calculator provides an estimate of actual aeration time only; it does not include planning, equipment and materials, site preparation, or setup and cleanup.

Total Area


sq. ft.

Seed Needed