Grass Seed Calculator

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Calculates the amount of grass seed needed to cover a lawn area based on its dimensions and seeding rate.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Lawn Width, Lawn Length, and Seeding Rate in the units shown.

Step 2

Read Lawn Area and Seed Needed in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

See the inputs and their calculated results.

Lawn Width: 20 feet; Lawn Length: 30 feet; Seeding Rate: 5 lbs per 1000 sq ft

Lawn Area: 600 sq ft; Seed Needed: 3 lbs

Lawn Width: 50 feet; Lawn Length: 75 feet; Seeding Rate: 5 lbs per 1000 sq ft

Lawn Area: 3,750 sq ft; Seed Needed: 18.75 lbs

Lawn Width: 100 feet; Lawn Length: 150 feet; Seeding Rate: 5 lbs per 1000 sq ft

Lawn Area: 15,000 sq ft; Seed Needed: 75 lbs

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