What Is This Tool?
This tool helps convert illumination values from the meter-candle unit, a scientific measure equivalent to lux, to the informal unit called flame, which describes light emitted by open combustion sources. It enables qualitative comparisons between standardized illuminance and more relatable flame light levels.
How to Use This Tool?
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Enter the value in meter-candle (m*c) to be converted.
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Select meter-candle as the input unit and flame as the output unit.
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Submit the values to view the equivalent flame illumination level.
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Interpret the result as an informal comparison of light intensity.
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Use the converted value to assist in qualitative lighting assessments.
Key Features
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Converts meter-candle (m*c) values to flame units using a fixed conversion factor.
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Supports understanding illumination in both scientific and informal contexts.
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Useful for historical lighting research, safety, firefighting, and fieldwork.
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Bridges precise measurements with qualitative visual descriptions.
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Browser-based and easy to use for quick conversions.
Examples
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10 meter-candle converts to approximately 0.2323 flame units.
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100 meter-candle converts to approximately 2.3226 flame units.
Common Use Cases
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Comparing room or worksurface lighting levels using historic metre-candle terminology.
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Qualitative descriptions of illumination in archaeology and anthropology without instruments.
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Safety and firefighting fieldwork to indicate presence or visibility of open flames.
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Bridging scientific photometric data with informal lighting descriptions for conservation reports.
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Estimating light levels outdoors where precise instruments are not available.
Tips & Best Practices
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Use meter-candle or lux units for precise scientific or engineering illumination measurements.
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Rely on flame units only for informal or qualitative assessments.
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Be aware that light from flames fluctuates due to fuel and environmental variations.
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Interpret conversion results as approximate, not exact values.
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Use this conversion to translate between standardized units and relatable visual terms.
Limitations
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Flame is not a standardized photometric unit and is only approximate for comparison.
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Variations in actual flame light make exact equivalence impossible.
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Not suitable for scientific, engineering, or design precision.
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Conversion should be used only when precise units are unavailable or unnecessary.
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Environmental factors affect flame brightness, limiting consistency.
Frequently Asked Questions
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What is a meter-candle?
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A meter-candle is an older unit of illuminance equal to one lumen per square meter and is numerically equivalent to the lux unit.
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Is flame a precise measurement unit?
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No, flame is an informal descriptor for illumination from open combustion and is not standardized or precise.
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Why convert meter-candle to flame?
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Converting to flame helps provide a qualitative or informal understanding of light levels by comparing them to familiar flame brightness.
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, numerically equivalent to lux, representing light from a point source one meter away.
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Flame
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An informal, non-standard unit describing light emitted by an open combustion source, used for qualitative comparisons rather than precise measurement.