# Lux to lumens calculator

Illuminance in lux (lx) to luminous flux in lumens (lm) calculator and how to calculate.

Enter the illuminance in lux (lx), select area unit type, enter radius in meters for spherical light source or surface area

in square meters for any light source and press the Calculate button to get the luminous flux in lumens (lm):

 Enter Illuminance in lux: lx Select area unit type: Area in square feet Area in square meters Enter spherical radius: Or enter surface area: Luminous flux result in lumens: lm

Lumens to lux calculator ►

## Lux to lumens calculation formula

#### Calculation with area in square feet

The luminous flux ΦV in lumens (lm) is equal to 0.09290304 times the illuminance Ev in lux (lx) times the surface area A in square feet (ft2):

ΦV(lm) = 0.09290304 × Ev(lx) × A(ft2)

So The luminous flux ΦV in lumens (lm) is equal to 0.09290304 times the illuminance Ev in lux (lx) times 4 times pi times the squared sphere radius r in feet (ft).

ΦV(lm) = 0.09290304 × Ev(lx) × 4⋅π⋅r(ft) 2

#### Calculation with area in square meters

So The luminous flux ΦV in lumens (lm) is equal to the illuminance Ev in lux (lx) times the surface area A in square meters (m2).

ΦV(lm) = Ev(lx) × A(m2)

So The luminous flux  ΦV in lumens (lm) is equal to the illuminance Ev in lux (lx) times 4 times pi times the squared sphere radius r in meters (m).

ΦV(lm) = Ev(lx) × 4⋅π⋅r 2(m2)

##### Example 1

What is the luminous flux on a surface of 4 square meters and illuminance of 300 lux?

ΦV(lm) = 400 lux × 4 m2 = 1200 lm

##### Example 2

What is the luminous flux on a surface of 4 square meters and illuminance of 700 lux?

ΦV(lm) = 700 lux × 4 m2 = 2800 lm

##### Example 3

What is the luminous flux on a surface of 4 square meters and illuminance of 890 lux?

ΦV(lm) = 890 lux × 4 m2 = 3560 lm

##### Example 4

What is the luminous flux on a surface of 5 square meters and illuminance of 11000 lux?

ΦV(lm) = 11000 lux × 5 m2 = 5500 lm

##### Example 5

What is the luminous flux on a surface of 7 square meters and illuminance of 800 lux?

ΦV(lm) = 800 lux × 7 m2 = 5600 lm

Lux to lumens calculation ►

## Features of Lux to lumens Calculator

Our Lux to lumens Calculator allows the users to Calculate Lux to lumens . Some of the prominent features of this utility are explained below.

#### No Registration

You don’t need to go through any registration process to use the Lux to lumens Calculator. Using this utility, users to Calculate Lux to lumens as many times as you want for free.

#### Fast conversion

This Lux to lumens Calculator offers users the fastest Calculate. Once the user enters the  Lux to lumens values ​​in the input field and clicks the Calculate button, the utility will start the conversion process and return the results immediately.

#### Saves Time and Effort

The manual procedure of Calculator Lux to lumens isn’t an easy task. You must spend a lot of time and effort to complete this task. The Lux to lumens Calculator allows you to complete the same task immediately. You will not be asked to follow manual procedures, as its automated algorithms will do the work for you.

##### Accuracy

Despite investing time and effort in manual Calculation, you might not be able to get your hands on accurate results. Not everyone is good at solving math problems, even if you think you're a pro, there's still a good chance you'll get in accurate results. This situation can be smartly handled with the help of a Lux to lumens Calculator. You will be provided with 100% accurate results by this online tool.

##### Compatibility

The online Lux to lumens converter perfectly works on all operating systems. Whether you have a Mac, iOS, Android, Windows, or Linux device, you can easily use this online Tool without facing any hassle.

###### 100% Free

You don't need to go through any registration process to use this Lux to lumens Calculator. You can use this utility for free and do unlimited Lux to lumens Calculate without any limitations.