room lighting, lumen total, fixture count, watts and operating-cost calculators
Plan room lighting from measurable inputs
Estimate lumen totals, fixture count, connected watts and operating energy from your own room and fixture assumptions.
Tools
Tools
Target Lumen Total
Calculate a planning lumen total from area and lumens per square metre.
Open →ToolsFixture Count
Estimate whole fixtures from target lumens and lumens per fixture.
Open →ToolsConnected Lighting Power
Calculate total fixture watts.
Open →ToolsAnnual Lighting Energy
Estimate yearly electricity use from total watts and daily hours.
Open →Guides
Guides
Use more than one lighting layer
General, task and accent lighting solve different needs.
GuidesUse lumen totals as a planning baseline
A target lumen figure is not a complete lighting design.
GuidesConvert the target to real fixtures
Fixture count depends on the actual lumen output of the product.
GuidesSeparate light output from power consumption
Lumens describe light output while watts describe electrical power.