UnitCon

Luminous Intensity

Luminous intensity measures how much light a source emits in a particular direction. The candela is one of the SI base units and is central to photometry. This converter helps compare modern and older luminous-intensity units. It is useful in lighting design, flashlight specs, and optical engineering.

Common conversions

FromTo
1 Candlepower0.981 Candela
1 Candela1.019368 Candlepower
200 Candela200,000 Millicandela
1000 Candela1 Kilocandela
10 Candela10,000 Millicandela

Frequently asked questions

A candela is the SI unit of luminous intensity. It measures how much visible light is emitted in a specific direction.

Candela measures directional intensity, while lumens measure total visible light output. A narrow beam can have high candela even with moderate total lumens.

A standard candle is often used as a rough intuitive reference for about one candela. It is a directional measure, not a whole-room brightness measure.

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