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Christmas Tree Size Calculator
Enter your ceiling height and room size. Get the exact tree height, base width, lights, and ornament count to buy.
Your tree
8 ft
4.8-foot base · standard shape
Lights
800 ft
16 × 50ft strands
Ornaments
~96
across 3 sizes
Ribbon
32 ft
4 inch width
Topper
12 in
height of piece
Budget low
$320
basic faux + decor
Budget high
$880
premium real or pre-lit
How the numbers work
- Tree height: ceiling minus 12 inches (room for the topper and lifting power for the stand).
- Lights: 100 feet per foot of tree is the industry standard for a well-lit tree.
- Ornaments: roughly 12 per foot of tree, split across three sizes (50% small, 30% medium, 20% large).
- Ribbon: 4 feet of ribbon per foot of tree, draped loose top-to-bottom in a single line.
- Base width: 60% of tree height for standard shapes (45% slim, 75% full).