Convert lux to lumen/square metre

Please provide a value.
Please provide a value.

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. 


Lumen/Square Metre

The lumen per square metre (lm/m²) is equivalent to the lux, the SI unit of illuminance. It directly expresses the luminous flux incident on a surface per unit area. This is the most fundamental expression of illuminance in the SI system. 


Lux to Lumen/Square Metre conversion table
LuxLumen/Square MetreLumen/Square MetreLux
1111
2222
3333
5555
10101010
20202020
25252525
50505050
100100100100
250250250250
500500500500
1000100010001000
How to convert Lux to Lumen/Square Metre

1 lx = 1 lm/m². To convert any value, multiply it by 1. For example, 25 lx = 25 lm/m².

Frequently asked questions
How many lm/m² are there in one lx?
One lx is equal to 1 lm/m².
How do you convert Lux to Lumen/Square Metre?
Multiply the value in Lux by 1 to get the result in Lumen/Square Metre.
How much is 25 lx in lm/m²?
25 lx is equal to 25 lm/m².
How do you convert Lumen/Square Metre back to Lux?
Divide by the same factor: multiply the value in Lumen/Square Metre by 1 to get Lux.

Most common illumination unit conversions