Calculate your quantity
Use your measured area and the actual product specification. The result updates as you change an input.

How this estimate works
Seed pounds = lawn square feet ÷ 1,000 × the bag rate × (1 + allowance ÷ 100).
Seed, sod, and fertilizer use different rates and buying units. Use the grass species, bag label, supplier coverage, and soil test appropriate to the site.
Before you order
- Measure the area to treat, not the whole property.
- Check the seed or fertilizer label and local guidance.
- Include preparation and establishment care in the project plan.
Planning estimates can differ from delivered or installed quantities.
Reference
Penn State Extension: Lawn establishment. Product specific rates and installation specifications take precedence over general defaults.