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Illuminance Unit Converter
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Quickly convert illuminance units including lux (lx), foot-candles (fc), and phots (ph).
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Solve your illuminance unit conversion challenges with a single click. Accurately convert between lux (lx), foot-candles (fc), phots (ph), and other units. We use international standard conversion factors to ensure accurate and reliable results.
Input values must be valid numbers; negative numbers and scientific notation are not supported. Conversion results are for reference only. For critical applications, please verify with actual measurements.
Architectural lighting design typically uses lux (lx) as the standard unit, while film and television lighting commonly uses foot-candles (fc). For reference, direct sunlight is approximately 100,000 lx, standard office lighting is 500 lx, and moonlight is only 0.1 to 0.3 lx.
