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How to Convert from Foot-candle [ft*c, fc] to Lumen/square foot [lm/ft^2]?
Easily convert illuminance measurements from foot-candle to lumen per square foot with this online unit converter designed for lighting professionals and enthusiasts.
Please check your input. It must be a valid numeric value.
Foot-candle [ft*c, fc] to Lumen/square foot [lm/ft^2] Conversion Table
| Foot-candle [ft*c, fc] | Lumen/square foot [lm/ft^2] |
|---|
Custom Unit Conversion Table Generator – Instant Printable Conversion Tables
Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.
Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.
Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.
| Foot-candle [ft*c, fc] | Lumen/square foot [lm/ft^2] |
|---|
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What Is This Tool?
This tool converts illuminance values between foot-candle and lumen per square foot, two equivalent units measuring luminous flux per square foot commonly used in lighting design and related fields.
How to Use This Tool?
- Enter the value you want to convert in foot-candles or lumen per square foot
- Select the initial unit and the desired conversion unit
- Click convert to see the equivalent illuminance measurement
- Use the result to inform lighting designs or compliance requirements
Key Features
- Converts between foot-candle and lumen per square foot with a 1:1 conversion ratio
- Easy to use interface suitable for lighting design, photography, horticulture, and museum lighting
- Supports accurate expression of illuminance levels in industry-preferred units
- Browser-based and accessible without installation
Examples
- 5 foot-candles converts to 5 lumen per square foot
- 12 foot-candles converts to 12 lumen per square foot
Common Use Cases
- Specifying and verifying indoor lighting levels in offices, classrooms, and retail environments
- Measuring and setting illumination for photography, film, and stage lighting
- Controlling light levels in museums, galleries, and horticultural settings
Tips & Best Practices
- Ensure measurements are taken on consistent surfaces for accurate comparisons
- Use appropriate units favored in your specific lighting industry or application
- Remember that this conversion does not account for spectral or directional lighting qualities
Limitations
- Conversion assumes equivalent values without adjustments for spectral quality or lighting directionality
- Precision depends on consistent measurement surfaces and conditions
- Does not address differences in light quality or environmental factors
Frequently Asked Questions
- Are foot-candle and lumen per square foot the same?
- Yes, foot-candle and lumen per square foot both measure illuminance and are equivalent; 1 foot-candle equals 1 lumen per square foot.
- Where is this conversion commonly used?
- This conversion is widely used in lighting design, photography, stage production, horticulture, museums, and retail lighting for precise illuminance specification.
- Does this tool consider the quality of lighting?
- No, the tool converts illuminance units but does not account for spectral characteristics or directional effects of lighting.
Key Terminology
- Foot-candle [ft*c, fc]
- A unit of illuminance equivalent to one lumen per square foot, commonly used in North America to measure luminous flux on a surface.
- Lumen per square foot [lm/ft^2]
- Illuminance measurement indicating luminous flux incident on a one-square-foot area; equivalent to the foot-candle unit.
- Illuminance
- The measure of luminous flux incident on a surface area, indicating how much light lands on that surface.