Skip to main content

Grass Seed Calculator

Calculate how much grass seed you need for new lawns or overseeding.

Grass Seed Calculator

Calculate how much grass seed you need for your lawn

Formula

Seed (lbs) = (Area ÷ 1000) × Seed Rate

Seed rate varies by grass type and application

How to Use This Calculator

  1. 1

    Measure lawn

    Measure the length and width of your lawn area.

  2. 2

    Select application

    Choose new lawn, overseeding, or thickening.

  3. 3

    Choose grass type

    Select your grass variety for accurate seed rates.

Frequently Asked Questions

How much grass seed per 1000 sq ft?

New lawns need 3-8 lbs per 1000 sq ft depending on grass type. Overseeding uses about half that amount.

When is the best time to seed?

Fall is ideal for cool-season grasses. Late spring is best for warm-season grasses like Bermuda.

How long does grass seed take to grow?

Most grass seed germinates in 7-21 days. Full establishment takes 6-8 weeks.