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How to Convert from Lux [lx] to Lumen/square foot [lm/ft^2]
Learn how to convert illuminance values from lux (lx) to lumen per square foot (lm/ft²) using a straightforward conversion tool with practical examples and common use cases.
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Lux [lx] to Lumen/square foot [lm/ft^2] Conversion Table
| Lux [lx] | 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.
| Lux [lx] | Lumen/square foot [lm/ft^2] |
|---|
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What Is This Tool?
This converter transforms illuminance measurements from lux, the SI unit representing lumens per square meter, into lumen per square foot, commonly used in regions adopting imperial units. It helps users align lighting measurements for professional and practical applications.
How to Use This Tool?
- Enter the illuminance value in lux (lx) into the input field.
- Select lux as the input unit and lumen per square foot as the output unit.
- Click the convert button to get the equivalent illuminance in lumen per square foot.
- Review the converted result provided instantly for your application.
Key Features
- Converts lux values to lumen per square foot accurately based on standard conversion rates.
- Supports lighting professionals and hobbyists dealing with different measurement unit systems.
- Includes clear examples for quick and easy conversion reference.
- Browser-based and user-friendly interface suitable for various illumination-related tasks.
Examples
- 500 lux is converted to 46.45 lumen per square foot (lm/ft²).
- 1000 lux converts to 92.90 lumen per square foot (lm/ft²).
Common Use Cases
- Lighting design and compliance verification for offices, classrooms, and retail environments.
- Adjusting lighting setups in photography, film, and stage production using imperial units.
- Determining optimal grow-light arrangement in horticulture applications.
- Controlling illumination for sensitive museum and gallery lighting conditions.
Tips & Best Practices
- Ensure the illumination is measured under uniform light conditions for best conversion accuracy.
- Use the tool to cross-check lighting specifications when switching between metric and imperial units.
- Confirm lighting designs meet local lighting standards and regulations after conversion.
- Be aware of light source variations which might influence practical illuminance beyond numeric conversion.
Limitations
- Conversion assumes evenly distributed illumination and does not factor in light direction or spectral qualities.
- Rounding and instrument calibration differences can impact precision of results.
- Different lighting sources, natural or artificial, may affect the real-world equivalence of these units.
Frequently Asked Questions
- What does lux measure in lighting terms?
- Lux is an SI derived unit measuring illuminance, quantifying luminous flux per square meter weighted by human daylight visual response.
- Why convert lux to lumen per square foot?
- Converting lux to lumen per square foot helps align lighting measurements with standards in regions using imperial units, facilitating accurate lighting design and compliance.
- Are lux and lumen per square foot equivalent units?
- They measure the same physical quantity of illuminance but differ in unit area size; 1 lumen per square foot approximates 10.764 lux.
Key Terminology
- Lux [lx]
- The SI derived unit of illuminance representing one lumen per square meter, weighted by human photopic response.
- Lumen per square foot [lm/ft²]
- A unit of illuminance indicating luminous flux incident on a one-square-foot surface, equivalent to foot-candle.
- Illuminance
- A measurement of luminous flux per unit area, indicating how much light is incident on a surface.