Know what your tree is actually worth
A free calculator and homeowner's library for tree appraisal — built on the same ISA/CTLA method certified arborists use for insurance claims, removal disputes, and property valuation.
Tree Value Calculator
Professional CTLA-based tree appraisal estimate — trusted by homeowners & arborists across the US.
Tree Species
Each species carries a unique CTLA value multiplier
Tree Measurements
Enter DBH & height — both affect the final value
Condition & Location
Health and site ratings adjust the final appraisal value
⚠️ Educational estimate only. Based on ISA/CTLA Trunk Formula Method. Consult a certified ISA arborist for legal or insurance purposes.
Three measurements, one appraisal
Like counting rings in a trunk, the CTLA method builds an estimate layer by layer — each measurement narrows in on the tree's true value.
Measure
Trunk diameter (DBH) and total height set the base trunk area used in the formula.
Assess
Species, condition, and site location each apply a multiplier to the base value.
Calculate
The calculator combines every factor instantly into a defensible dollar estimate.
Start here
Practical reading for homeowners dealing with tree damage, removal decisions, or insurance claims.
How the CTLA formula actually works
A plain-English walkthrough of trunk area, unit cost, and the multipliers behind every estimate.
Read the guide →Using a tree value estimate for a claim
What insurers typically ask for, and how to document a damaged or removed tree properly.
Read the guide →Which species hold the most value
Oak, walnut, and maple compared — and why species rating moves your estimate more than you'd think.
Browse species →Get your estimate in under a minute
Enter species, trunk diameter, height, condition, and location — see a live, itemized appraisal with a printable summary.
Common questions
Is this a legally binding appraisal?
No. It's an educational estimate based on the ISA/CTLA Trunk Formula Method. For insurance or legal purposes, consult a certified ISA arborist.
What is DBH?
Diameter at breast height — the trunk's diameter measured 4.5 feet above ground, the standard measurement point in arboriculture.
Why does species change the value so much?
Slower-growing, longer-lived, structurally strong species like oak or walnut carry a higher CTLA rating than fast-growing, weaker-wooded species.