Tree Age Calculator

Estimate the age of a tree based on diameter, height, or species

Diameter
Height
Species
Oak
Slow (4-8)
Maple
Moderate (5-10)
Pine
Moderate (5-10)
Birch
Fast (7-12)

Estimated Tree Age

48
Likely range: 43-53 years

This tree started growing around 1977

0.25″
Annual Growth
Medium
Growth Rate
Moderate
Accuracy

Growth Ring Pattern

20%
50%
30%
Fast
Medium
Slow

Tree Age Milestones

1977: Tree began growing

1987: ~3 inches in diameter

2002: ~6 inches in diameter

2025: Current: 12 inches

This calculator provides estimates based on typical growth rates. For precise age determination, consult with an arborist.