Plant spacing calculator
PROHow many plants fit an area at your chosen spacing.
Short answer: Rows = ⌊length × 12 ÷ spacing⌋. Cols = ⌊width × 12 ÷ spacing⌋. 10 × 4 ft bed at 12" spacing = 10 × 4 = 40 plants. Enter your measurements above and the plant spacing calculator returns the quantity, unit conversions and an estimated cost instantly, in imperial or metric — no sign-up needed.
What do you need to measure?
What is the answer?
Total plants
40
Rows × cols
10 × 4
Density
1.0 / sq ft
How does the plant spacing calculator work?
Rows = ⌊length × 12 ÷ spacing⌋. Cols = ⌊width × 12 ÷ spacing⌋.
What does a worked example look like?
10 × 4 ft bed at 12" spacing = 10 × 4 = 40 plants.
What do people ask most?
›Square vs triangular?
Triangular fits ~15% more plants in the same area.
Which garden calculator should you use next?
Where can you learn more?
Read field notes on estimating and materials, or browse every calculator we make.