Free tool · The Design Lab
The Fixture Sizing Calculator
Enter your room type and dimensions. Get the diameter to shop for, how many fixtures you need, and how high to hang them. Free, no sign-up.
The problem
The fixture that looked right in the showroom rarely is.
A pendant that filled the display swims over a kitchen island at home. A chandelier sized by eye crowds the table, or floats too high to read as anything. Often the fixture goes up, gets lived with for a week, and it is quietly clear it is wrong.
How the calculator fixes it
Size it to the room before you buy.
Enter the room and what sits below the fixture. The calculator returns the numbers that read right for the space.
- Fixture diameter range for the room.
- Count and spacing over a table or island.
- Mounting and drop heights.
Ceiling ft
in
Ceiling height must be between 6 and 24 feet.
Length ft
in
Width ft
in
Table dimensions must be at least 2 feet.
Width ft
in
Depth ft
in
Room dimensions must be at least 2 feet.
Length ft
in
Width ft
in
Island dimensions must be at least 2 feet.
Hood ft
in
A hood this wide leaves no room for pendants.
Enter your room details
to see the recommendation.
Your Fixture
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Go deeper
The Residential Lighting Reference covers mounting heights, spacing rules, and fixture specifications in full. 42 pages, $37.
See Guide 01 · $37