calcs.homes
calcs.homes
Enter your garden bed size and how far apart each plant needs to be, and we'll lay out a grid and tell you how many plants fit.
Estimate only — assumes an even grid layout with no border margin.
We divide bed length by spacing and add one to get plants per row, and divide bed width by spacing and add one to get the number of rows — adding one accounts for a plant sitting at each edge, not just the gaps between plants. Multiplying rows by plants-per-row gives the total count for an even grid layout.
This edge-inclusive grid math mirrors how gardeners actually plant a bed — starting a row at the edge rather than leaving a half-empty gap there. It's more accurate than the looser "area ÷ spacing squared" shortcut, which ignores plant placement at borders and tends to undercount rows that fit right up to the edge.
At the commonly recommended 24 in spacing, a 4x8 ft bed fits about 3 rows of 5 plants — 15 plants. Enter your bed size and spacing above for an exact count for any crop.
Check the seed packet or plant tag — it's usually listed as inches or centimeters "between plants" and sometimes a separate "between rows" figure.