Tree Height Calculator
Shadow Method
Use your shadow and the tree's shadow to calculate height
Angle Method (Clinometer)
Use distance and angle to calculate height
Stick Method
Use a stick at arm's length to estimate height
Formula
Shadow: TreeHeight = (YourHeight / YourShadow) × TreeShadow | Angle: TreeHeight = Distance × tan(Angle) + EyeHeight
Frequently Asked Questions
How can I measure tree height without climbing?
Three common methods: (1) Shadow method - compare your shadow to the tree's shadow, (2) Angle method - measure the angle to the treetop from a known distance using a clinometer, (3) Stick method - use similar triangles with a stick at arm's length. The angle method with a phone clinometer app is the most accurate.
How tall do common trees get?
Average mature heights: Dogwood 15-30 ft, Maple 40-80 ft, Oak 50-80 ft, Pine 50-100 ft, Douglas Fir 100-250 ft, Redwood 200-350+ ft. Heights vary by species, climate, and growing conditions.
Why would I need to know tree height?
Tree height is important for: assessing fall zone for removal, determining if a tree threatens structures or power lines, estimating timber/firewood volume, landscaping planning, and arborist assessments.
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