Lumens Necessários
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
About this calculator
The Lumens per M² Illumination Calculator is a useful tool for calculating the adequate amount of light needed for an indoor environment. It is based on the simple formula: area × lux. With this calculator, you can determine the amount of light needed for a room, a kitchen or any other indoor space.
Proper lighting is essential for safety and comfort in any environment. Moreover, it can also affect productivity and well-being. It's essential to calculate correctly the amount of light needed to avoid over-lighting or under-lighting.
The Lumens per M² Illumination Calculator is easy to use and provides accurate results. Just enter the area of the space and the desired lighting intensity (in lux) to get the amount of light needed in lumens. Also, consider common precautions when using this calculator, such as the accuracy of the area measurement and the choice of adequate lighting intensity.
Frequently asked questions
What is lux and how is it calculated?
Lux is the unit of measurement of luminous intensity. It is calculated by dividing the amount of light emitted by a light source by an area of 1 square meter. For example, if a light bulb emits 1000 lumens over 1 square meter, the lighting intensity is 1000 lux.
When should I use the Lumens per M² Illumination Calculator?
Use this calculator whenever you need to determine the amount of light required for an indoor environment, such as a room, a kitchen or any other space. It's also useful when you need to compare different lighting options or evaluate the effectiveness of an existing lighting installation.
How can I avoid over-lighting or under-lighting?
To avoid over-lighting or under-lighting, it's essential to calculate correctly the amount of light needed for the environment. This can be done using the Lumens per M² Illumination Calculator. It's also important to consider the desired lighting intensity and the presence of obstacles that may affect light distribution.
Can I use the Lumens per M² Illumination Calculator to calculate outdoor lighting?
No, this calculator is designed to calculate indoor lighting. To calculate outdoor lighting, you will need to use a different calculator that takes into account factors such as the sun's angle and the intensity of solar light.