We created this **tree spacing calculator** used in **forestry** and **agriculture** to calculate the **optimal distance** between the **number of trees** that can be planted in a given area.

Suppose you have a **1-acre plot** and want to plant **oak trees**. The **Tree Spacing Calculator** can help you determine:

How many trees you can plant if you want them spaced

20 feet apartHow far apart to space the trees if you want to plant

100 trees

Using the tree per acre calculator:

`You can plant approximately `**108 trees** with **20-foot spacing**

`To plant `**100 trees**, you'd need to space them about **20.8 feet apart**

## Tree Spacing Calculator

Desired Trees per Acre | Calculated Spacing (ft) | Rounded Spacing (ft) | Actual Trees per Acre | Metric Conversion (m) |
---|---|---|---|---|

50 | 29.54 | 30 x 30 | 48.4 | 9.1 x 9.1 |

75 | 24.12 | 24 x 24 | 75.6 | 7.3 x 7.3 |

100 | 20.88 | 21 x 21 | 98.8 | 6.4 x 6.4 |

125 | 18.68 | 19 x 19 | 121.1 | 5.8 x 5.8 |

150 | 17.08 | 17 x 17 | 149.2 | 5.2 x 5.2 |

175 | 15.81 | 16 x 16 | 174.2 | 4.9 x 4.9 |

200 | 14.76 | 15 x 15 | 193.6 | 4.6 x 4.6 |

225 | 13.87 | 14 x 14 | 222.4 | 4.3 x 4.3 |

250 | 13.10 | 13 x 13 | 256.9 | 4.0 x 4.0 |

275 | 12.41 | 12 x 12 | 302.5 | 3.7 x 3.7 |

300 | 11.80 | 12 x 12 | 302.5 | 3.7 x 3.7 |

325 | 11.25 | 11 x 11 | 360.5 | 3.4 x 3.4 |

350 | 10.75 | 11 x 11 | 360.5 | 3.4 x 3.4 |

375 | 10.29 | 10 x 10 | 435.6 | 3.0 x 3.0 |

400 | 9.87 | 10 x 10 | 435.6 | 3.0 x 3.0 |

425 | 9.48 | 9 x 9 | 537.3 | 2.7 x 2.7 |

450 | 9.12 | 9 x 9 | 537.3 | 2.7 x 2.7 |

475 | 8.78 | 9 x 9 | 537.3 | 2.7 x 2.7 |

500 | 8.46 | 8 x 8 | 681.3 | 2.4 x 2.4 |

## Trees Per Acre Spacing Chart

Spacing (feet) | Trees per Acre |
---|---|

5 x 5 | 1,742 |

6 x 6 | 1,210 |

8 x 8 | 681 |

10 x 10 | 436 |

12 x 12 | 302 |

15 x 15 | 194 |

20 x 20 | 109 |

25 x 25 | 70 |

30 x 30 | 48 |

## Tree Spacing Calculation Formula

The basic formula for calculating the **number of trees per acre** is:

**Trees per Acre = (43,560 / (Row Spacing x Tree Spacing))**

Where:

**43,560**is the number of**square feet**in an acre**Row Spacing**is the distance between rows (in feet)**Tree Spacing**is the distance between trees within a row (in feet)

For trees spaced

10 feet apartin rows that are10 feet apart:Trees per Acre = 43,560 / (10 x 10) = 435.6 ≈ 436 trees

For trees spaced

8 feet apartin rows that are12 feet apart:Trees per Acre = 43,560 / (12 x 8) = 453.75 ≈ 454 trees

## How to calculate the spacing of trees?

- Decide how many trees you want per acre based on factors like
**species**,**climate**, and**purpose**(timber production, orchard, etc.). **Choose a planting pattern**: Common patterns include**square**,**rectangular**,**triangular**, or**quincunx**.**Use the formula**: Rearrange the**Trees per Acre formula**to solve for spacing:**Spacing = √(43,560 / Trees per Acre)****Adjust for row spacing**: If using**rectangular spacing**, you’ll need to adjust the formula:**Row Spacing x Tree Spacing = 43,560 / Trees per Acre****Round and refine**: Round your results to**practical measurements**and adjust as needed for your specific situation.

## How far apart should trees be spaced?

Most forest trees are spaced between **8 and 12 feet apart**, while orchard trees might be spaced **15 to 25 feet apart**.

**Tree species**: Different species have varying **growth habits** and space requirements.

**Purpose**: **Timber production** may require different spacing than an **orchard** or **landscape planting**.

**Soil quality**: **Rich soils** can support denser plantings than **poor soils**.

**Climate**: **Drier climates** may require wider spacing to reduce competition for **water**.

**Management practices**: **Intensive management** can allow for closer spacing.

**Future thinning plans**: If you plan to **thin** the trees later, you might start with closer spacing.

## How many trees per acre in a healthy forest?

A **healthy mature forest** might have anywhere from **40 to 1,000 trees per acre**.

For example:

- A
**mature pine plantation**might have**200-300 trees per acre** - A
**natural hardwood forest**could have**40-100 large trees per acre**, with numerous smaller trees and saplings - A
**young, regenerating forest**might have**1,000 or more saplings per acre**

Forest managers often use the concept of “**Basal Area**” (the cross-sectional area of trees at breast height) rather than trees per acre to measure **forest density**, as it accounts for **tree size** as well as **number**.

The **number of trees per acre** in a **healthy forest** varies widely depending on:

Forest type:Tropical rainforestshave more trees per acre thantemperate forests.Age of the forest:Younger foreststypically have more trees per acre thanmature forests.Species composition: Forests withsmaller tree speciescan support more trees per acre.Site conditions:Soil quality,water availability, andclimateaffect tree density.Management goals: A forest managed fortimber productionmight have different density than one managed forwildlife habitat.

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