Seed Quantity Calculator
Estimate planting positions, raw seed needs, and a whole-seed recommendation from row length and spacing.
How the estimate works
Positions = floor(row length ÷ spacing) × rows.
Seeds = positions ÷ germination rate × extra allowance.
Worked example
Two 10-foot rows at 3-inch spacing, 80% germination, and 10% extra require 110 seeds.
Assumptions
- One seed is counted per planned position before germination allowance.
Limitations
- Packet counts vary by crop, variety, and supplier; this tool returns seed quantities only.