Row Spacing Calculator
Enter your bed size and spacing, and we'll figure out how many rows and plants fit — no graph paper required.
📖 How it works & FAQPlan your beds before you plant
Spacing is the quiet decision that makes or breaks a harvest. Crowd your rows and plants compete for light, water, and airflow — inviting mildew and stunted growth. Space them too generously and you leave yield on the table. This Row Spacing Calculator turns four simple measurements into a clear planting plan so you can buy the right number of seedlings and lay out each bed with confidence.
How the math works
The calculator converts your bed width and length from feet to inches, then divides by your spacing. Rows = bed width ÷ row spacing, rounded down. Plants per row = bed length ÷ in-row plant spacing, rounded down. Total plants = rows × plants per row. We round down because a partial row or a plant with only half its spacing rarely thrives. Row spacing is the gap between parallel rows; in-row spacing is the gap between plants inside a single row.
How to use it
- Enter your bed width and length in feet.
- Enter the row spacing in inches (check your seed packet).
- Enter the in-row plant spacing in inches.
- Read the rows, plants per row, and total instantly — results update as you type.
FAQ
- What's the difference between row spacing and plant spacing?
- Row spacing is the distance between one row and the next. In-row plant spacing is the distance between individual plants within the same row.
- Why does my total round down?
- A plant needs its full spacing to grow well, so we count only rows and plants that fully fit. Leftover inches become a helpful buffer at the bed's edge.
- Can I use square-foot or intensive spacing?
- Yes — set row spacing equal to plant spacing (for example 6" & 6") to approximate a tight grid layout.
- Are these numbers exact?
- They're planning estimates, not professional agronomic advice. Always follow your seed packet and adjust for variety, climate, and staking needs.