Convert lux to watt/sq. cm (at 555 nm)

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Lux

The lux (lx) is the SI unit of illuminance, measuring luminous flux per unit area. One lux equals one lumen per square metre. It is used to measure the intensity of light as perceived by the human eye falling on a surface. Typical office lighting is around 300–500 lux, while direct sunlight exceeds 100,000 lux. 


Watt/Sq. cm (at 555 nm)

The watt per square centimetre at 555 nm is a radiometric unit of irradiance at the wavelength of peak human visual sensitivity. The conversion to lux uses the luminous efficacy of 683 lm/W at 555 nm, making 1 W/cm² equal to 6,830,000 lux. 


Lux to Watt/Sq. cm (at 555 nm) conversion table
LuxWatt/Sq. cm (at 555 nm)Watt/Sq. cm (at 555 nm)Lux
11.464E-0716.83E+06
22.928E-0721.366E+07
34.392E-0732.049E+07
57.321E-0753.415E+07
101.464E-06106.83E+07
202.928E-06201.366E+08
253.66E-06251.7075E+08
507.321E-06503.415E+08
1001.464E-051006.83E+08
2503.66E-052501.708E+09
5007.321E-055003.415E+09
10000.000146410006.83E+09
How to convert Lux to Watt/Sq. cm (at 555 nm)

1 lx = 1.464E-07 W/cm². To convert any value, multiply it by 1.464E-07. For example, 25 lx = 3.66E-06 W/cm².

Frequently asked questions
How many W/cm² are there in one lx?
One lx is equal to 1.464E-07 W/cm².
How do you convert Lux to Watt/Sq. cm (at 555 nm)?
Multiply the value in Lux by 1.464E-07 to get the result in Watt/Sq. cm (at 555 nm).
How much is 25 lx in W/cm²?
25 lx is equal to 3.66E-06 W/cm².
How do you convert Watt/Sq. cm (at 555 nm) back to Lux?
Divide by the same factor: multiply the value in Watt/Sq. cm (at 555 nm) by 6.83E+06 to get Lux.

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