Basal Area Calculator

Calculate the basal area of trees in your forest plot to assess stand density, growth, and management needs.

🌲 Basal Area • 📏 Stand Density • 📊 Forest Metrics

Plot Configuration

Plot Area

Length:

Width:

Total area: 0.25 hectares

Tree Group

Tree Measurements

Plot Visualization

Measurement Units

Diameter Unit:

Basal Area Unit:

Basal Area Results

0 m²/ha

Total Basal Area

0 m²

Avg. Basal Area/Tree

Total Trees

0 trees/ha

Tree Density

Distribution Analysis

Tree Group

Selected Group: -

Total Trees Measured: 0

Plot Metrics

Plot Area: -

Average Diameter: -

Forest Metrics

Stand Density Index

Relative density

Stocking Level

Forest health

Growth Potential

Future yield

Management Recommendations

Silvicultural Practices

Monitoring Tips

Diameter Distribution

Basal Area Guide

What is Basal Area?

Basal area is the cross-sectional area of tree stems at breast height (1.3m or 4.5ft), typically measured in m²/ha or ft²/acre. It’s a key indicator of forest density and health.

Tree Group Selection

🌲 Coniferous

Pine, Spruce, Fir

Narrow crowns, high density, timber-focused.

🌳 Deciduous

Oak, Maple, Birch

Broad crowns, moderate density, mixed uses.

🌴 Mixed

Coniferous + Deciduous

Diverse structure, balanced management.

Why Basal Area Matters

Basal area helps foresters assess stand density, competition, and growth potential, guiding decisions on thinning, harvesting, and conservation.

How to Use This Calculator

Enter your plot area dimensions and select units
Choose a tree group
Input tree diameters and counts, then add measurements
Select measurement units for diameter and basal area
Click "Calculate Basal Area" for detailed results
Review basal area, distribution, and forest metrics
Follow management recommendations for forest health