What is the tree worth?
Pre-filled with a realistic job. Change any input and the figure updates as you type — nothing is sent anywhere, and Print gives you a clean sheet without the buttons.
- Trunk cross-section452 sq in
- Base (area × unit cost)$32,572
- Species × condition × location0.48×
- Appraised replacement value$15,635
The four inputs, and how to rate them
| Input | What it means | How to judge it |
|---|---|---|
| Unit cost | Local replacement cost per square inch of trunk | Derived regionally from nursery stock and installation |
| Species | Suitability and longevity in your region | A long-lived native rates high; a brittle short-lived species low |
| Condition | Structure, vigour, defects | The rating a risk assessment would give it |
| Location | Contribution to the site — shade, screening, placement | A specimen shade tree rates high; a back-corner volunteer low |
Sound
Why the number gets large fast
Because it is driven by trunk area, not diameter. Doubling DBH quadruples the base. A 12-inch tree and a 24-inch tree of the same species and condition are not two-to-one in value; they are closer to four-to-one. Measure yours properly with the DBH calculator — including the multi-stem rule, which materially changes the answer.
Three real uses
Deciding whether to save a tree
Compare the value against a cabling install or a treatment programme. This is the most useful everyday use.
Understanding a municipal penalty
Ordinances frequently assess unpermitted removal on appraised value or per inch — see the permit guide.
Supporting a claim
Insurers and courts want a signed appraisal by a qualified arborist. This tool tells you whether the conversation is worth having.
For the first of those, put the number beside a cabling install and against the removal cost. Large specimen trees usually justify the support system comfortably.