Inputs

Lighting zones

Add one row for each relevant space, item, zone, document, or measurement set.

Row 1

Zone label Enter the project label, note, or reference used for this calculation. Zone area m2 Enter a numeric project value in m2 at or above 0.01. Target illuminance lux Enter a numeric project value in lux at or above 0.01.

Row 2

Utilisation factor Enter a numeric project value between 0.01 and 1. Maintenance factor Enter a numeric project value between 0.01 and 1.

Total area -- m2

Weighted target illuminance -- lux

Total required initial lumens -- lm

Zone count --

Calculation details

Total area: -- m2
Weighted target illuminance: -- lux
Total required initial lumens: -- lm
Zone count: --

Important notes

This calculator does not declare Australian standards compliance.
Use current product documentation and project-specific professional review where required.

Formula

Worksheet-style planning support. Record assumptions and review missing product or site data before relying on the output.

Combine zones with different target illuminance values into one planning summary.

Multi-zone Lighting Area Calculator is a planning aid. Keep the target source, product data, measurement method, and project assumptions with the result. Confirm compliance, installation, certification, and safety decisions with the responsible professional.

Inputs

Results

Formula