Tree Age Calculator
Free estimate tree age using diameter, growth rings, or species-specific growth rates. Get instant, accurate results with our easy-to-use calculator.
Tree Age Calculation
Age Estimation Results
Enter tree measurements to calculate age
Tree Age Estimation Methods
Diameter-Based Method
- • Uses DBH and species growth rates
- • Most common estimation method
- • Accuracy: ±20-30%
- • Good for living trees
- • Non-destructive technique
Growth Ring Method
- • Counts annual growth rings
- • Most accurate method
- • Requires core sample
- • Used in dendrochronology
- • Can reveal climate history
Species Growth Rate
- • Based on species characteristics
- • Considers growing conditions
- • Uses height measurements
- • Accounts for environmental factors
- • Good for young trees
Typical Growth Rates by Species
| Species | Growth Rate | Annual DBH Increase | Maturity Age |
|---|---|---|---|
| Oak | Slow-Medium | 0.2-0.4 inches | 50-100 years |
| Pine | Medium-Fast | 0.3-0.6 inches | 30-60 years |
| Maple | Medium | 0.25-0.5 inches | 40-80 years |
| Cedar | Slow | 0.1-0.3 inches | 100-200 years |