What Is This Tool?
This converter helps you change illuminance measurements from meter-candle [m*c], an older unit equal to lux, into centimeter-candle [cm*c], an obsolete unit mainly used in historical photometry and legacy lighting documents.
How to Use This Tool?
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Enter the value measured in meter-candle [m*c].
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Select meter-candle as the original unit and centimeter-candle as the target unit.
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Click the convert button to get the equivalent value in centimeter-candle [cm*c].
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Review the result and use it for interpreting historical photometric data or legacy specifications.
Key Features
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Converts meter-candle to centimeter-candle units based on the defined relationship.
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Supports understanding and interpreting historical and legacy illumination data.
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Includes example conversions for practical reference.
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Browser-based and easy to use for quick unit conversions.
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Facilitates comparison of lighting measurements in older literature.
Examples
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500 meter-candle [m*c] converts to 0.05 centimeter-candle [cm*c].
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1000 meter-candle [m*c] converts to 0.1 centimeter-candle [cm*c].
Common Use Cases
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Interpreting or comparing room or worksurface lighting levels using legacy units.
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Converting historical photometric measurements expressed in candle-based units.
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Restoring or evaluating old lighting-design documents and optical instrument calibrations.
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Analyzing photographic lighting data and early lamp test reports in obsolete units.
Tips & Best Practices
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Understand that centimeter-candle is obsolete and values can be very large compared to meter-candle.
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Use this conversion mainly for historical or legacy data rather than modern scientific measurements.
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Verify if the candle unit equals one candela when interpreting values to avoid confusion.
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Cross-check converted values with lux measurements for clarity, as meter-candle equals lux.
Limitations
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Centimeter-candle is rarely used in modern contexts and represents very high illuminance.
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Conversion assumes the candle corresponds to one candela, which may not apply in all historical contexts.
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Results may not align with current illuminance measurement standards relying on lux.
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Best suited for legacy data interpretation, not for contemporary lighting design or scientific use.
Frequently Asked Questions
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What is a meter-candle [m*c]?
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A meter-candle is an older unit of illuminance equivalent to one lumen per square meter and numerically equal to the SI unit lux.
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Why convert meter-candle to centimeter-candle?
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Conversion helps interpret historical lighting data and legacy measurements that used centimeter-candle units for high illuminance near sources.
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Is centimeter-candle still used today?
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No, centimeter-candle is an obsolete unit mainly found in older literature and has been replaced by lux.
Key Terminology
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Meter-candle [m*c]
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An older illuminance unit equal to one lumen per square meter, equivalent to lux.
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Centimeter-candle [cm*c]
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An obsolete illuminance unit representing the illumination at one centimeter from a point source of one candle.
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Candela
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The SI unit of luminous intensity, representing the power emitted by a light source in a particular direction.