How many petacandela in 1 teracandela?
The answer is 0.001.

We assume you are converting between **petacandela** and **teracandela**.

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petacandela or
teracandela

The SI base unit for **luminous intensity** is the candela.

1 candela is equal to 1.0E-15 petacandela, or 1.0E-12 teracandela.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between petacandelas and teracandelas.

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The SI prefix "peta" represents a factor of
10^{15}, or in exponential notation, 1E15.

So 1 petacandela = 10^{15} 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 540×10^{12} hertz and that has a radiant intensity of 1/683 watt per steradian.

The SI prefix "tera" represents a factor of
10^{12}, or in exponential notation, 1E12.

So 1 teracandela = 10^{12} 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 540×10^{12} hertz and that has a radiant intensity of 1/683 watt per steradian.

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