What Is This Tool?
This unit converter transforms illuminance values from meter-candle units to lux units. Both units represent illuminance and are numerically equivalent, aiding in consistent measurement and interpretation across different lighting standards and historical data.
How to Use This Tool?
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Enter the illuminance value you want to convert in meter-candle (m*c).
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Confirm that the target unit is set to lux (lx).
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Click the convert button to view the result, given the identical unit values.
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Use the converted values to compare, calibrate, or apply in lighting standards and design.
Key Features
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Converts meter-candle (m*c) to lux (lx) using a direct 1:1 ratio.
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Supports applications in lighting design, photography, architectural lighting, and display testing.
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Helps standardize illuminance data and facilitates compliance with lighting requirements.
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Browser-based and easy to use without any installation.
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Handles values reflecting real-world lighting situations such as room and outdoor illumination.
Examples
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100 meter-candle [m*c] equals 100 lux [lx].
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450 meter-candle [m*c] equals 450 lux [lx].
Common Use Cases
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Specifying or comparing lighting levels for workspaces, such as offices with typical illuminance around 300–500 m*c/lx.
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Interpreting and applying historical photometry data recorded in meter-candles.
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Calibrating illuminance in photography, display testing, and lighting design reported in m*c or lx.
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Measuring daylight and outdoor illumination levels for architectural or occupational safety compliance.
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Standardizing illuminance metrics to meet indoor and outdoor lighting regulations.
Tips & Best Practices
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Verify the context and source of your illuminance data to ensure proper usage of units despite the 1:1 equivalence.
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Use calibrated instruments to minimize discrepancies caused by measurement conditions.
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Apply the converter when working with older lighting literature to understand and standardize values to modern units.
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Cross-check results when comparing indoor and outdoor illumination to accommodate environmental influences.
Limitations
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Though the conversion rate is exactly 1:1, real-world measurement differences may arise due to instrument calibration and environmental factors.
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Users should be mindful of the illumination measurement context despite unit equivalence.
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This tool does not account for variations caused by differing photometric methodologies.
Frequently Asked Questions
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Is the conversion from meter-candle to lux always one-to-one?
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Yes, one meter-candle is exactly equal to one lux, so the conversion factor is 1:1.
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Why do we need to convert meter-candle to lux if they are equal?
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Converting helps standardize measurements when handling historical data or using modern lighting standards that prefer lux.
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Can environmental factors affect illuminance readings despite unit conversion?
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Yes, factors like measurement methods, instrument calibration, and environment can influence actual illuminance values.
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 equal to lux.
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Lux [lx]
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The SI derived unit of illuminance representing luminous flux per unit area weighted by visual response.
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Illuminance
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The measure of luminous flux incident on a surface per unit area.