Free Tool · Electrical

Lighting / Lux Calculator

Estimate how many light fixtures and how much load you need to hit the right lux level for your space (lumen method). Adjust the inputs, then get an engineered lighting design from our team.

Your space

Floor area (sq.ft) 1,000 sq.ft

Space type (target lux)

Fixture type

Lumen method: fixtures = (lux × area) ÷ (fixture lumens × utilisation × maintenance factor). A detailed design uses a DIALux layout and actual reflectances.

Fixtures required—

Lighting load—

Target lux—

Lumens required—

Per 1000 sq.ft—

Power density—

Get an engineered lighting design — free

Our engineers will prepare a proper lux layout, fixture schedule and energy-efficient design for your space. We'll attach the estimate above automatically.

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Indicative estimates only — not a binding design. Actual layout depends on room geometry, reflectances, mounting height and uniformity per IS / NBC lighting norms.

Need an exact BOQ, rate analysis or measurement sheet?

This is a quick engineering estimate. For tendering, billing or audit, our QS & estimation team prepares an item-wise BOQ, rate analysis and a verified measurement sheet to IS / CPWD norms — backed by 15+ years and ISO 9001:2015 quality processes.

Get a detailed BOQ & rate analysis → WhatsApp our QS team

Lighting / Lux Calculator