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Plant Spacing Calculator

Plan garden beds with the right plant spacing: plant counts for square or triangular offset layouts.

Plant spacing

Enter the bed size and spacing. Results update live.

Plants that fit
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Enter the bed size and spacing.

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How the count is figured

The bed length and width in inches are each divided by the plant spacing and rounded down, then multiplied to get the grid count. Triangular offset layouts stagger alternate rows, which packs about 15 percent more plants into the same bed.

Why spacing matters

Correct spacing gives each plant room for roots, light and airflow, which cuts disease and boosts yields. Crowded plants compete and stay small, while over spaced beds waste growing space you paid to prepare.

Plant Spacing Calc FAQs

How many tomato plants in a 4x8 bed?
About 8 to 12, depending on variety. Indeterminate tomatoes need 18 to 24 inch spacing, so a 4x8 bed fits roughly 8 to 12 plants.
What is square foot gardening spacing?
Divide each square foot by plant size: 1, 4, 9 or 16 plants per square foot for large, medium, small or tiny plants. The calculator generalizes this to any bed size.
Is triangular spacing really better?
It fits about 15 percent more plants, which suits intensive beds. Square grids are easier to hoe and walk between, so pick based on how you maintain the bed.
How far apart should carrots be?
Thin to about 2 to 3 inches apart in rows 6 inches apart. Dense sowing then thinning gives the most even carrot stand.
Should I buy extra seedlings?
Yes, buy 10 percent extra. Some seedlings fail to transplant, and spares let you fill gaps without a second trip to the nursery.
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