Utility July 13, 2026 · 8 Min Read

Tree Spacing Calculator – Guide & Formulas

Calculate optimal spacing between trees for orchards, windbreaks, or reforestation. Determine trees per acre based on spacing or vice versa.

Calculate optimal spacing between trees for orchards, windbreaks, or reforestation projects. Determine trees per acre from spacing or find spacing from desired density.

Key Takeaway

Use the free Tree Spacing Calculator to calculate optimal spacing between trees for orchards, windbreaks, or reforestation. determine trees per acre based on spacing or vice versa. Get instant results with step-by-step explanations.

How to Use the Tree Spacing Calculator

  1. Enter the desired spacing between trees in feet or meters.
  2. Enter the row spacing (distance between rows) if different from tree spacing.
  3. For reverse calculation, enter the target number of trees per acre or hectare.
  4. Review planting layout, trees per row, and total trees needed.

The Formula

Trees per Acre = 43,560 / (Tree Spacing × Row Spacing). For square spacing: Spacing = √(43,560 / Trees per acre). 43,560 sq ft = 1 acre.

Variable Definitions

  • Spacing: Distance between individual trees within a row in feet or meters
  • Row Spacing: Distance between parallel rows of trees in feet or meters
  • 43,560: The number of square feet in one acre
  • Trees/acre: The total number of trees that can be planted in one acre at the given spacing

Calculating Trees Per Acre for 15-foot Spacing

Determine how many trees can be planted per acre with 15 ft × 15 ft spacing.

  1. Step 1: Identify spacing: 15 ft × 15 ft (square pattern).
  2. Step 2: Apply formula: Trees/acre = 43,560 / (15 × 15).
  3. Step 3: Calculate: 43,560 / 225 = 193.6 trees per acre.
  4. Step 4: Round to 194 trees per acre for practical planting.

Frequently Asked Questions

What is the best spacing for orchard trees?

Apple trees: 12–15 ft apart, rows 18–20 ft. Citrus: 15–20 ft apart, rows 20–25 ft. Peach: 12–18 ft apart, rows 18–22 ft. Spacing depends on rootstock vigor and canopy management style.

What is the difference between square and triangular spacing?

Square spacing arranges trees in a grid pattern. Triangular (hexagonal) spacing staggers alternate rows, fitting 15% more trees per acre in the same area while maintaining equal distance between all neighbors.

How far apart should windbreak trees be?

Windbreak trees are typically spaced 8–12 ft apart within rows, with 12–20 ft between rows. Dense windbreaks use multiple rows (3–7) with closer spacing for maximum wind reduction.

How do I convert square meters to acres?

1 acre = 4,047 square meters. To convert, divide your area in square meters by 4,047. For hectares, divide by 10,000 (1 hectare = 2.47 acres).