How accurate is the calculator?

This tool is designed as a professional guide based on industry averages and over 20 years of tree-wrapping experience. Exact results depend on the unique size, shape, and fullness of each tree, so we recommend always measuring on-site and using the calculator to set expectations and bid smarter.

What type of lights is the calculator based on?

The estimates are based on standard 100-count 5mm mini light strands with 4" bulb spacing (33' total length). These are the most commonly used lights in professional installs for trees, branches, and columns.

What spacing should I use between wraps?

A good rule of thumb is 2–4 inches between wraps, depending on how dense your client wants the look to be. Tighter wraps give a more dramatic appearance but use more lights — be sure to communicate this during quoting.

Should I calculate the trunk and branches separately?

Yes. We always recommend starting with the trunk calculator and then using the branch calculator to estimate coverage above that. Treating them separately helps avoid underbidding and ensures a balanced finished look.

Should I use a staple gun to secure lights when wrapping tree trunks or branches?

We don’t recommend using a staple gun for tree wrapping. Staples can damage the light strands, compromise tree health, and reduce reusability. A tight, consistent wrap with professional-grade mini lights is more than enough to keep your lines secure — no staples needed. Focus on even spacing and tension for the cleanest results.

Tree Trunk & Branch Calculator

Tree Trunk & Branch Light Calculator

Based on over 20 years of experience wrapping trees professionally, we’ve created this two-part calculator to guide your lighting plan. First, calculate lights for the trunk. Then, estimate branch coverage — both are essential for a balanced, professional look.

While this is a powerful planning tool, remember: no two trees are the same. The only way to create an exact bid is by measuring each tree on-site. This calculator offers a strategic starting point to help you communicate expectations with clients and protect your time, labor, and profitability.

How to Measure Your Trunk

To get an accurate estimate, measure the height and diameter of your tree trunk, and determine your desired spacing. This tool is based on 100-count 5mm mini light strands (33' total length with 4" bulb spacing).

Measure tree trunk height and circumference

1. Measure Trunk Height

2. Measure Trunk Diameter

3. Choose Spacing (recommend 4in spacing)

Step 1: Calculate Lights for the Tree Trunk

Input the tree trunk’s height, diameter (measurement across), and wrap spacing below to estimate the number of lights needed.

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How to Measure Your Branches

To get an accurate estimate, measure the length and diameter of your tree branch, the desired spacing, and estimated number of branches. This tool is based on 100-count 5mm mini light strands (33' total length with 4" bulb spacing).

1. Measure Length of Branch

2. Measure Branch Diameter

3. Choose Spacing

Step 2: Calculate Lights for Tree Branches

Use this calculator to estimate lights based on the average length and number of branches you'd like to wrap.

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Shop 5mm Mini Lights for Tree Wrapping

All lights used in these calculators are based on 100-count strands of 5mm mini lights, with 4" spacing between bulbs and approximately 33' of total length. Available in Warm White, Pure White, Multi, and more.

Shop Mini Lights

Need help calculating other displays? Explore our other tools:
Bush Light Calculator | Tree Ornament Calculator | Column Wrap Calculator