Seed Quantity Calculator — Estimate Seeds Needed
Estimate how many seeds to sow based on row length (or planting area) and the spacing between seeds. You can also enter how many seeds go in each planting hole. This is an estimate — sow extra to allow for germination losses.
What this calculator determines
It estimates how many seeds to sow from row length or planting area, seed spacing, and the number of seeds per planting hole.
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Examples
16 ft row, 2 in spacing
16 ft row, 2 in apart, 1 seed per hole
Calculation
- Spacing: 2 in = 0.167 ft
- Holes: 16 ÷ 0.167 = 96
- Seeds: 96 × 1 = 96
~96 seeds
Assumptions & Conventions
- Estimate only
- Germination varies — the result is a planning estimate; sow extra or use the 25% buffer shown for losses.
- Measurement mode
- Row mode: holes = floor(row length ÷ spacing); area mode: holes = floor(area ÷ spacing²). Seeds = holes × seeds per hole.
- Spacing source
- Use the seed spacing from your seed packet.