Tree Height Calculator
Viewpoint Level with Base of Tree

H = h + D * tan(Theta)

h	Distance From Ground to Intercept of Horizontal Line (feet)
D	Distance from Tree to Viewpoint
theta	Angle from Viewpoint to Top
H	Height of Tree(feet) =

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Tree Height Calculator
Viewpoint above Base of Tree

H = D * (tan u + tan d)

D	Horizontal Distance from Viewpoint to Tree (feet)
u	Angle from Viewpoint to Top of Tree
d	Angle from Viewpoint to Bottom of Tree
H	Height of Tree(feet) =

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Tree Height Calculator
Viewpoint Below Base of Tree

H = D * (tan u - tan d)

D	Horizontal Distance from Viewpoint to Tree (feet)
u	Angle from Viewpoint to Top of Tree
d	Angle from Viewpoint to Base of Tree
H	Height of Tree(feet) =

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Leaning Tree Height Calculator
Viewpoint Above Base of Tree

H = D x (tan(u) + tan(d))

D	Distance from Plumb Line to Viewpoint
u	Angle from Viewpoint to Top of Tree
d	Angle from Viewpoint to Plumb Line
H	Height of Tree(feet) =

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Leaning Tree Height Calculator
Viewpoint Below Base of Tree

H = D x (tan(u) - tan(d))

D	Distance from Plumb Line to Viewpoint
u	Angle from Viewpoint to Top of Tree
d	Angle from Viewpoint to Plumb Line
H	Height of Tree(feet) =

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