• DIAMETER BREAST HEIGHT (DBH)

    DBH is the standard used to measure the size of a tree and is 54 inches above ground.

    How to Get Started

    1. Measure 54 inches (4.5 feet) above the ground and mark your tree at that spot.
    2. Select the option below that best describes your tree at the 54 inch mark for directions on how to proceed.

  • How to measure your tree:

    1. Use a soft measuring tape and wrap it around each branch at 54 inches (4.5 feet) to find the circumference.
    2. Enter the circumference into Calculator 1 below to find the DBH of your tree.

  • CALCULATOR 1

    FIND THE DBH

  • How to measure your tree:

    1. Use a soft measuring tape and wrap it around each branch at 54 inches (4.5 feet) to find the circumference of each one.
    2. Write down the circumference for each branch so you can use it for the below calculations.
    3. For each branch, enter the circumference into Calculator 1 below to find the DBH of the branch.
    4. Write down the DBH for each branch so you can enter them into Calculator 2.
    5. Enter the DBH of each branch into Calculator 2 below to find the equivalent DBH of the tree.

  • CALCULATOR 1

    FIND THE DBH OF EACH BRANCH

  • CALCULATOR 2

    FIND THE DBH EQUIVALENT FOR THE TREE

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