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How to Convert from Lumen/square meter [lm/m^2] to Foot-candle [ft*c, fc]?
Learn how to convert illumination values from lumen per square meter to foot-candle, widely used units in lighting measurements across different regions and industries.
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Lumen/square meter [lm/m^2] to Foot-candle [ft*c, fc] Conversion Table
| Lumen/square meter [lm/m^2] | Foot-candle [ft*c, fc] |
|---|
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.
| Lumen/square meter [lm/m^2] | Foot-candle [ft*c, fc] |
|---|
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What Is This Tool?
This converter helps you change illuminance values from lumen per square meter, the SI derived unit, to foot-candle, a commonly used non-SI unit in North America. It facilitates lighting design, exposure settings, and compliance with regional standards.
How to Use This Tool?
- Enter the illuminance value in lumen per square meter.
- Select the target unit as foot-candle.
- Click the convert button to get the equivalent foot-candle value.
- Review the results and apply them to your lighting or exposure needs.
Key Features
- Converts illumination levels between lumen/square meter and foot-candle units.
- Suitable for lighting design, photography exposure, horticulture, and building code compliance.
- Uses accurate conversion factor based on established standards.
- Browser-based and easy to use for quick unit conversion.
- Includes example conversions for practical understanding.
Examples
- Convert 10 lumen/square meter to foot-candle resulting in 0.9290304 foot-candle.
- Convert 50 lumen/square meter to foot-candle giving 4.645152 foot-candle.
Common Use Cases
- Verifying lighting levels in workspaces, classrooms, and public areas.
- Adjusting exposure settings in photography and cinematography.
- Controlling light delivery in horticulture and greenhouse environments.
- Specifying task and ambient lighting in offices and retail spaces.
- Managing lighting setups in museums and galleries.
Tips & Best Practices
- Use this conversion tool to harmonize lighting values between SI and North American units.
- Consider the measurement environment, including angle and surface reflectance, when interpreting results.
- Cross-check lighting specifications depending on regional codes and standards.
- Apply conversions carefully to maintain compliance in international projects.
Limitations
- Foot-candle is a non-SI unit mainly used in North America which may cause challenges in international contexts.
- Rounding during conversion can affect precision of illuminance values.
- Measurement results can vary due to factors like incident light angle and surface reflectance.
Frequently Asked Questions
- What does lumen per square meter measure?
- It measures illuminance as the amount of luminous flux incident uniformly on one square meter of surface and is equivalent to the lux.
- Why use foot-candle instead of lumen/square meter?
- Foot-candle is commonly used in North America for lighting design and standards, especially in offices, retail, and building codes.
- Can measurement conditions affect conversion results?
- Yes, factors like the angle of light incidence and surface reflectance can influence illuminance readings during conversion.
Key Terminology
- Lumen/square meter [lm/m^2]
- The SI derived unit of illuminance equal to one lumen of luminous flux incident uniformly on a square meter surface, equivalent to lux.
- Foot-candle [ft*c, fc]
- A non-SI unit of illuminance equal to one lumen per square foot, commonly used in North America.