Candela and Lumens Relationship Calculator
Estimate the approximate relationship between lumens and candela from a simple beam-angle solid angle.
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Lighting Fixture Count Calculator
Estimate the number of luminaires needed for an area and target maintained illuminance.
Lumens to Lux Calculator
Estimate average illuminance from lumens, area, utilisation, and maintenance assumptions.
Luminaire Efficacy Calculator
Calculate system luminous efficacy in lumens per watt using luminaire output and input power.
Lux to Lumens Calculator
Estimate the initial lumens required from area, target illuminance, utilisation, and maintenance assumptions.