The luminosity converter is a free online tool that helps you convert between physics units quickly and accurately. It supports 4 units including Candela (cd), Lux (lx), Lumen (lm), Foot-candle (fc). The core conversion formula is: 1 lux = 1 lumen per square meter. For example, 1 Candela equals approximately 1 Lux. Conversely, 1 Lux equals approximately 1 Candela. Common conversions: 5 cd = 5 lx, 10 cd = 10 lx, 25 cd = 25 lx, 50 cd = 50 lx, 100 cd = 100 lx. This converter is useful for students, engineers, scientists, and professionals who need accurate physics unit conversions. Whether you are working on homework, technical specifications, research data, or everyday measurements, this tool provides instant, reliable results. All conversions are calculated relative to a single base unit for consistency and precision across all supported units. A typical office has about 300-500 lux of light. Sunlight provides about 100,000 lux.