LLUXGRID

DIALux lighting calculations

CALCULATING LIGHT · WORLDWIDE

LUXGRID · LUXLAB PRO

Free Lux Calculator

3D lighting layout tool

Estimate room lux levels, luminaire quantity, spacing and light distribution with an interactive 3D false-colour lighting visualisation.

02 · LIVE SCENEIsometric room
LUXGRID · LIVE PHOTOMETRIC VIEW30.0 × 30.0 m · H 5.0 m
DRAG TO ROTATE · SCROLL TO ZOOM

Drag or use touch to rotate the three-dimensional room. Use the mouse wheel or pinch gesture to zoom.

Automatic relative scale61 lx 286 lx

The colour range automatically follows the current scene to keep the lighting pattern clear. Colours show relative distribution, not compliance.

Model boundary

The cinematic room treatment, fixture bodies and beam guides are visual aids; they are not a physical rendering or calculated reflection result. The calculation uses a simplified mathematical light distribution and does not reproduce a real luminaire’s photometry or accurately account for reflections, obstructions, materials, glare conditions or external influences. Approval and compliance remain with the appropriate client, consultant and authority. LUXLAB PRO is not affiliated with or endorsed by DIAL GmbH.

HOW IT WORKS

What this visualisation demonstrates

It reveals how a regular grid of simplified beams overlaps on a sampled working plane, so you can compare the effect of basic inputs.

WHAT IT CANNOT DO

Why a real project needs DIALux

Professional project results need verified manufacturer IES/LDT data, detailed geometry, material reflectance, calculation surfaces and an appropriate design review.

QUICK ANSWERS

Lux calculator FAQ

Helpful context for room, warehouse and high-bay lighting estimates.

What is a lux calculator?

A lux calculator estimates illuminance on a surface from room dimensions, fixture output, mounting height, quantity and light distribution assumptions.

How many lights do I need for a room?

Enter the room size, mounting height, lumens per fixture and a proposed row and column count. Compare the estimated average, minimum and spacing as you adjust the layout.

Can I use this for warehouse or high-bay lighting?

Use it for early educational comparisons only. A real warehouse or high-bay project needs verified photometric files and a professional calculation.

Does this replace DIALux?

No. LUXLAB PRO is an educational estimator and does not replace a professional DIALux calculation using verified IES or LDT data.