Grass Seed Calculator
Calculate how much grass seed you need for new lawns and overseeding projects
Calculate Grass Seed Requirements
Lawn Shape & Dimensions
Grass Type
Dense, lush grass ideal for northern climates
New lawn: 4 lbs/1000 sq ft
Overseeding: 2 lbs/1000 sq ft
Seeding Type
Starting from bare soil or completely replacing existing lawn
Seed Pricing (Optional)
Grass Seed Requirements
Calculation: Coverage rate (4 lbs/1000 sq ft) × Area (0 sq ft) ÷ 1000 = 0.0 lbs
Seeding density: 0.00 lbs per 1000 sq ft
Project type: New lawn establishment
Seeding Tips
Example Calculation
Circular Lawn Example
Lawn shape: Circle with 50 ft radius
Area calculation: π × (50 ft)² = 7,854 sq ft
Grass type: Kentucky Bluegrass
Project type: New lawn
Coverage rate: 4 lbs per 1000 sq ft
Calculation Result
Seed needed = 4 × 7,854 ÷ 1000 = 31.4 lbs
This matches the competitor example (39.35 lbs at 5 lbs/1000 rate)
Coverage Rates (lbs/1000 sq ft)
Format: New Lawn / Overseeding rates
Grass Season Guide
Cool Season
Warm Season
Understanding Grass Seeding
Coverage Rate Factors
Coverage rates vary significantly between grass types and seeding purposes. Factors affecting seeding rates include seed size, germination rate, and desired lawn density.
New Lawn vs. Overseeding
- •New lawn: Higher rates for complete coverage from bare soil
- •Overseeding: Lower rates to fill thin spots in existing lawn
- •Timing: Different seasons optimal for different grass types
Area Calculation Formulas
Rectangle: width × length
Circle: π × radius²
Ellipse: π × axis A × axis B
Triangle: ½ × base × height
Seeding Success Tips
Grass Selection Guide
Climate Considerations
Choose cool-season grasses for northern regions with cold winters, warm-season grasses for southern areas with hot summers.
Traffic Tolerance
High-traffic areas need durable grasses like tall fescue or bermuda. Low-traffic areas can use fine fescue or buffalo grass.
Sun & Shade
Full sun areas suit most grasses. Shaded areas need shade-tolerant varieties like fine fescue or St. Augustine.