Tree Root Calculator
Calculate tree root spread and depth with our comprehensive calculator. Estimate root growth based on tree species, trunk diameter, and soil conditions.
Step 1: Tree Details
Understanding DBH
DBH (Diameter at Breast Height) is measured at 4.5 feet above ground level. This is the standard measurement used in forestry and arboriculture for tree size classification.
Step 2: Soil & Calculation Details
About Root Systems
Tree roots typically extend 1.5 to 3 times the height of the tree. However, most roots are in the top 12-18 inches of soil, with the majority within the dripline (edge of canopy).
Root Calculation Results
Estimated Root Spread Radius
Tree Species Root Comparison
| Tree Species | Root Spread Radius | Root Depth | Dripline Area |
|---|
Root System by Soil Type
Root Calculation Formula
Root Spread Radius = Trunk Diameter × Species Factor × Soil Factor
Root spread calculations consider tree species, trunk diameter (DBH), soil type, and growth factors. The root protection zone is typically 1-1.5 times the root spread radius to prevent damage during construction or landscaping.
Need Professional Arborist Analysis?
Connect with our certified arborists for detailed tree health assessments, root system analysis, and professional tree care recommendations for your property.
Get Arborist Consultation