Light tools.
Calculators for illuminance and lux measurements.
Light and Illuminance Calculators
Illuminance measurement is the science of quantifying how much light falls on a surface, measured in lux (lumens per square meter). Proper lighting calculations are essential for architectural design, photography, workplace safety compliance, and horticultural growing operations where specific light levels are required for plant health.
Calculate Light Levels Accurately
Our light calculators help you determine illuminance values based on luminous flux, distance, and surface area. Whether you are designing office lighting to meet OSHA standards, setting up studio lighting for photography, or planning grow lights for indoor agriculture, accurate lux calculations ensure optimal results.
- Lux Calculator: Calculate the illuminance at a given distance from a light source using the inverse square law formula.
- Lumens to Lux Conversion: Convert between lumens (total light output) and lux (light intensity at a specific distance) based on the area being illuminated.
Understanding illuminance helps you select the right light bulbs for your space, comply with building codes that specify minimum lighting requirements, and create comfortable environments for work and living.