What Is This Tool?
This converter helps translate luminance values from the stilb unit, used historically in CGS photometric measurements, into kilocandela per square meter, a modern SI-based unit widely applied in display technology and brightness specification.
How to Use This Tool?
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Enter the luminance value in stilb (sb) into the input field.
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Select stilb as the input unit and kilocandela per square meter as the output unit.
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Click the convert button to get the equivalent luminance value in kilocandela per square meter.
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Review the result to compare historical CGS data with modern SI luminance measurements.
Key Features
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Converts luminance from stilb (sb) to kilocandela per square meter (kcd/m²).
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Supports interpretation and comparison of historical and modern luminance data.
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Includes conversion formula with a fixed rate of 1 stilb equals 10 kilocandela per square meter.
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Useful for applications in display engineering, automotive HUDs, and outdoor signage.
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Browser-based and easy to use without installation.
Examples
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2 stilb equals 20 kilocandela per square meter.
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0.5 stilb equals 5 kilocandela per square meter.
Common Use Cases
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Translating old photometric data in stilb into modern SI units for scientific research.
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Evaluating and comparing brightness levels in HDR displays and television screens.
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Setting luminance standards for automotive heads-up displays and instrument panels.
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Calibrating brightness for outdoor LED billboards and digital signage.
Tips & Best Practices
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Ensure you understand the difference between CGS and SI unit systems when converting.
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Use this tool to compare and interpret luminance values in legacy and modern contexts.
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Verify that the measurement conditions correspond to uniform surface luminance for accurate conversion.
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Apply the conversion carefully in cases where angular or spectral variations might affect luminance.
Limitations
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Stilb is based on CGS units and differs by a factor of 10 from kilocandelas per square meter.
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The conversion assumes uniform luminance across the surface measured.
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It may not capture variations due to viewing angles or spectral characteristics relevant in precise photometric scenarios.
Frequently Asked Questions
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What is stilb used for?
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Stilb is a photometric unit of luminance used historically in CGS measurements to quantify the brightness emitted or reflected from a surface.
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Why convert stilb to kilocandela per square meter?
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Converting stilb to kilocandela per square meter allows for interpreting legacy photometric data in modern SI units commonly used in display engineering and photometry.
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What is the conversion factor between stilb and kilocandela per square meter?
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1 stilb equals 10 kilocandela per square meter.
Key Terminology
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Stilb (sb)
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A CGS photometric unit of luminance equal to 10,000 candelas per square meter used historically to measure surface brightness.
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Kilocandela per square meter (kcd/m²)
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A modern SI unit of luminance equal to 1,000 candelas per square meter, widely used in photometry and display technology.
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Luminance
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The luminous intensity emitted or reflected from a surface per unit area in a given direction, indicating perceived brightness.