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Luminous Intensity Converter

Convert luminous intensity values between various units such as candela (cd), millicandela (mcd), and candlepower (cp). This tool is ideal for lighting professionals, display engineers, and physicists working with point light sources and directional lighting systems.

Convert Luminous Intensity Between Units

Input Fields
Enter the luminous intensity value to convert
If enabled, the result will update automatically when you change any value.

Luminous intensity measures the amount of light emitted by a source in a particular direction, and it’s fundamental in designing directional lighting, headlights, flashlights, and visual indicators. Supported units:

  • Candela (cd) – SI base unit
  • Millicandela (mcd) – often used in LEDs and small displays
  • Candlepower (cp) – traditional unit, approximately equal to candela
  • Hefnerkerze (HK) – historical unit used in Germany
  • Candela per steradian (cd/sr) – in photometry contexts

Use this converter when designing or analyzing optical systems, lighting standards, or intensity ratings for electronic components.

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