Seed Broadcasting Calculator

1. Enter your lawn area. Measure the total area in square feet, or enter length and width for rectangular lawns. For irregular shapes, break the lawn into sections and add the areas together.

2. Select the seeding type. Choose between new lawn (cool or warm season), overseeding, dense seeding, or wildflower. The calculator auto-sets a recommended rate, but you can adjust it.

3. Choose your bag size. Select the bag size your supplier sells. The calculator tells you how many bags to buy so you can order the right quantity.

4. Enter cost per bag (optional). Add the price per bag from your supplier to get a total material cost estimate.

The calculator uses standard turf industry seeding rates:

Seeding rates are based on recommendations from turf research programs and seed suppliers. Cool-season grasses (fescue, bluegrass, ryegrass) are common in the northern half of the US. Warm-season grasses (bermuda, zoysia, St. Augustine) are used in the southern half. The transition zone uses blends of both.

For broadcast seeding or dormant seeding, increase the rate by 50% over standard because seed placement is less precise and some seed will be lost to birds, wind, and poor soil contact.

Estimating seed for new lawn installs. Get the exact quantity needed for the job before ordering. Buying the right amount avoids returns and prevents running short mid-project.

Pricing overseeding jobs. Calculate seed cost as part of the total service price. Show the customer exactly how much seed their lawn needs and what it costs as part of a transparent bid.

Planning seasonal maintenance programs. Fall overseeding is one of the most common recurring services. Use the calculator to batch-order seed for multiple properties and lock in bulk pricing from your supplier.