## Convert candela to petacandela

 candela petacandela

How many candela in 1 petacandela? The answer is 1.0E+15.
We assume you are converting between candela and petacandela.
You can view more details on each measurement unit:
candela or petacandela
The SI base unit for luminous intensity is the candela.
1 candela is equal to 1.0E-15 petacandela.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between candelas and petacandelas.
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## Definition: Candela

The candela (symbol: cd) is the SI base unit of luminous intensity. It is the power emitted by a light source in a particular direction, weighted by the luminosity function. A common candle emits light with a luminous intensity of roughly one candela. The candela is officially defined as the luminous intensity of a source that emits monochromatic radiation of frequency 540×1012 hertz and that has a radiant intensity of 1/683 watt per steradian.

## Definition: Petacandela

The SI prefix "peta" represents a factor of 1015, or in exponential notation, 1E15.

So 1 petacandela = 1015 candelas.

The definition of a candela is as follows:

The candela (symbol: cd) is the SI base unit of luminous intensity. It is the power emitted by a light source in a particular direction, weighted by the luminosity function. A common candle emits light with a luminous intensity of roughly one candela. The candela is officially defined as the luminous intensity of a source that emits monochromatic radiation of frequency 540×1012 hertz and that has a radiant intensity of 1/683 watt per steradian.

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