Home Back

Can Light Placement Calculator

Light Spacing Formula:

\[ S = \sqrt{\frac{A}{N}} \]

ft²
lights

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is a Can Light Placement Calculator?

Definition: This calculator determines the optimal spacing for recessed can lights based on room area and number of lights.

Purpose: It helps homeowners, electricians, and designers achieve uniform lighting distribution in a space.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ S = \sqrt{\frac{A}{N}} \]

Where:

Explanation: The formula calculates the distance between lights by dividing the total area by the number of lights and taking the square root.

3. Importance of Proper Light Spacing

Details: Correct spacing ensures even illumination, prevents dark spots, and creates balanced lighting throughout the space.

4. Using the Calculator

Tips: Enter the room area in square feet and the desired number of lights. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the ideal number of can lights for a room?
A: A general rule is one light per 4-6 square feet, but this depends on light output and room function.

Q2: Should spacing be the same in all directions?
A: Typically yes, for uniform lighting. However, task areas may need adjusted spacing.

Q3: How does ceiling height affect spacing?
A: Higher ceilings may require closer spacing or higher lumen output to maintain proper illumination at floor level.

Q4: Can I use this for other types of lighting?
A: The principle applies to any uniformly distributed lighting, but specific fixtures may have different requirements.

Q5: What about room shape considerations?
A: For non-rectangular rooms, divide into zones and calculate spacing for each section separately.

Can Light Placement Calculator© - All Rights Reserved 2025