Seed Spacing Calculator

Summary

Enter your bed size, row spacing, and in-row spacing to instantly see how many seeds or plants fit and get a visual grid layout.

How it works

1. Enter your garden bed length and width.
2. Set the spacing between rows (center-to-center distance between adjacent rows).
3. Set the in-row spacing (center-to-center distance between plants along a row).
4. Choose inches or centimeters for all measurements.
5. Click Calculate to see the number of rows, plants per row, and total plant count.
6. A visual grid diagram shows the planting layout scaled to your bed.

Use cases

• Plan seed orders before the growing season.
• Space vegetables like carrots, beans, and lettuce correctly.
• Compare tight vs. wide spacing to decide how many plants to buy.
• Calculate transplant counts for tomatoes, peppers, and brassicas.
• Lay out rows in a new in-ground or raised garden bed.
• Teach proper spacing when starting a community garden plot.
• Estimate how many seed packets are needed for a full bed.
• Cross-check seed packet spacing recommendations against bed size.

Frequently Asked Questions