Christmas Lights HQ Calculator

Calculate exactly how many lights and strands you need for trees, columns, and trunk wraps.

Tree Dimensions

Modeled as a cone shape — works for evergreen trees, artificial trees, and outdoor trees.

Tree Type

Evergreen trees have dense foliage — lights are spaced ~6" apart through the branches for full coverage.

Tree Height (feet)

Base Width (feet) Widest point of the tree. Typically ~50% of tree height.

Light Density

Medium Coverage uses approximately 100 lights per vertical foot of tree height — the most popular choice for a beautifully balanced display.

Strand Type

Your Tree Lighting Estimate

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Total Lights

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Strands Needed

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Total String Length

Column / Pillar Dimensions

Calculate how many lights you need to spiral-wrap a column or pillar.

Column Shape

Column Height

Column Diameter

Measure straight across the widest point.

Side A Width

Side B Depth For a square column, Side A = Side B.

Wrap Spacing (Distance Between Each Wrap)

Tighter spacing = brighter, denser look. Wider spacing = subtler glow.

6" spacing is the most popular choice — delivers a clean, professional look with balanced brightness. Pro tip: measure from the center of one wrap to the center of the next.

Strand Type

Your Column Lighting Estimate

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Number of Wraps

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Total String Length

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Total Lights

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Strands Needed

Trunk & Branch Wrap Builder

Build your tree piece by piece — set the trunk, then add each major branch. The diagram updates live as you go.

Live preview — branches shown in matching colors

Trunk

Height (feet)

Diameter at Base (inches)

Diameter at Top (inches) Where main branches start forking.

Branches (0 added)

New Branch

Length (feet)

Avg. Diameter (inches) Average thickness along the branch.

Height on Trunk (feet) How far up the trunk this branch sits.

Side

Wrap Spacing

Strand Type

Your Trunk & Branch Estimate

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Total String Length

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Total Lights

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Strands Needed