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How to Convert from Lumen/square foot [lm/ft^2] to Centimeter-candle [cm*c]
Step-by-step guidance on converting illuminance values from lumen per square foot to centimeter-candle with definitions, use cases, and examples.
Please check your input. It must be a valid numeric value.
Lumen/square foot [lm/ft^2] to Centimeter-candle [cm*c] Conversion Table
| Lumen/square foot [lm/ft^2] | Centimeter-candle [cm*c] |
|---|
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 foot [lm/ft^2] | Centimeter-candle [cm*c] |
|---|
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What Is This Tool?
This converter transforms illumination measurements from lumen per square foot to the obsolete centimeter-candle unit. It helps users translate contemporary lighting values into historical units used in photometry and related fields.
How to Use This Tool?
- Enter the illuminance value in lumen per square foot (lm/ft²)
- Select lumen per square foot as the input unit
- Choose centimeter-candle (cm*c) as the output unit
- Click the convert button to get the result
- Review the output to compare with historical or legacy measurements
Key Features
- Converts between lumen per square foot and centimeter-candle units of illuminance
- Suitable for historical photometry and legacy lighting data analysis
- Browser-based and easy to use without technical installations
- Provides clear examples for practical understanding
- Helpful for archival research and calibration of older instruments
Examples
- 10 lm/ft² = 10 × 0.001076391 = 0.01076391 cm*c
- 100 lm/ft² = 100 × 0.001076391 = 0.1076391 cm*c
Common Use Cases
- Verifying indoor lighting levels in offices and retail against older standards
- Translating modern illuminance data to historical units for archival studies
- Calibrating vintage lighting instruments and photographic equipment
- Comparing early lamp test lighting reports to modern measurements
- Researching lighting conditions in museums, galleries, and horticultural setups
Tips & Best Practices
- Use this conversion primarily for historical, academic, or archival purposes
- Be cautious with very small numerical results due to unit scale differences
- Cross-check converted values when comparing legacy lighting data
- Remember centimeter-candle is obsolete and rarely used in modern lighting design
- Review measurement context to ensure the conversion is appropriate
Limitations
- Centimeter-candle is an outdated unit largely replaced by the lux standard
- Conversions involve very small numbers, requiring careful interpretation
- Rarely applicable for current practical lighting tasks
- Generally intended for comparison or reinterpretation of older datasets
- May not be supported in modern lighting software or measurement equipment
Frequently Asked Questions
- Why convert from lumen/square foot to centimeter-candle?
- This conversion helps translate modern illuminance measurements into older units used historically in photometry, enabling comparison with legacy lighting data and calibration of vintage instruments.
Key Terminology
- Lumen per square foot (lm/ft²)
- A unit measuring illuminance as luminous flux incident on a one-square-foot surface, equivalent to the foot-candle.
- Centimeter-candle (cm*c)
- An obsolete illuminance unit equal to the light on a surface one centimetre from a one-candle point source, historically used in photometry.
- Illuminance
- The measure of the amount of luminous flux falling on a surface per unit area.