The Candela Per Square Meter Calculator is an essential tool for anyone involved in lighting design, photography, architecture, or any field that requires a thorough understanding of light measurement. This calculator helps determine the illuminance, measured in lux, on a given surface area based on the luminous intensity emitted by a light source, expressed in candelas.

Illuminance is crucial for ensuring that spaces are adequately lit for their intended purposes, whether it's an office environment, a retail space, or an outdoor area. By using this calculator, users can make informed decisions regarding lighting design and placement, optimizing energy usage while achieving the desired ambiance and functionality of the space.

Understanding the relationship between luminous intensity, area, and illuminance enables professionals to create environments that are not only visually appealing but also safe and conducive to productivity.

## Formula of Candela Per Square Meter Calculator

To calculate illuminance using the Candela Per Square Meter Calculator, the following formula is use:

Where:

**Illuminance (lux)**= The amount of light that illuminates a surface.**Luminous Intensity (candelas)**= The power of light emitted by a source in a particular direction.**Area (square meters)**= The surface area over which the light is distribute.

## General Terms Table

To assist users in understanding related concepts and calculations, the following table provides general terms commonly searched in relation to lighting and illuminance. This can be helpful for making quick assessments without the need for constant calculations.

Term | Description | Example Calculation |
---|---|---|

Illuminance (lux) | Measure of how much light is received on a surface | (200 candelas / 10 m²) = 20 lux |

Luminous Intensity (cd) | Measure of the power of light emitted in a direction | 100 candelas |

Area (m²) | Surface area over which light is distributed | 15 square meters |

Footcandle (fc) | Measure of illuminance in the imperial system | 1 lux = 0.0929 footcandles |

Lumens (lm) | Measure of total light output from a source | 800 lumens from a bulb |

These terms and their relationships can help users understand and analyze their lighting needs without constantly recalculating.

## Example of Candela Per Square Meter Calculator

Consider a situation where a spotlight emits a luminous intensity of 300 candelas, and it illuminates an area of 5 square meters. To find the illuminance in lux, apply the formula:

Illuminance (lux) = Luminous Intensity (candelas) / Area (square meters)

Using the values provided:

Illuminance (lux) = 300 candelas / 5 m² = 60 lux

This means that the surface receives an illuminance of 60 lux, which can help determine if the lighting is suitable for the intended use of that space.

## Most Common FAQs

**What is a lux, and why is it important?**

A lux is a unit of measurement for illuminance, which quantifies how much light reaches a surface. It is important because it helps assess whether an area has sufficient lighting for its intended activities. Such as reading, working, or displaying products.

**How does luminous intensity affect lighting design?**

Luminous intensity is crucial in lighting design because it determines how focused and bright the light appears in a specific direction. A higher luminous intensity can create brighter spots of light, while lower intensity results in softer, more diffused lighting. Understanding this helps designers balance aesthetics and functionality.

**Can I convert lux to footcandles?**

Yes, you can convert lux to footcandles. The conversion is straightforward: 1 lux is approximately equal to 0.0929 footcandles. To convert lux to footcandles, multiply the lux value by 0.0929.