Inputs

Room length m Enter a numeric project value in m at or above 0.1. Room width m Enter a numeric project value in m at or above 0.1. Desk length m Enter a numeric project value in m at or above 0.1. Desk width m Enter a numeric project value in m at or above 0.1. Ambient target illuminance lux Enter a numeric project value in lux at or above 1. Desk task illuminance lux Enter a numeric project value in lux at or above 1. Ambient luminaire output lm Enter a numeric project value in lm at or above 1. Task luminaire output lm Enter a numeric project value in lm at or above 1. Utilisation factor ratio Enter a numeric project value in ratio between 0.01 and 1. Maintenance factor ratio Enter a numeric project value in ratio between 0.01 and 1. Screen glare risk Choose the option that best matches the project condition.

Room area -- m2

Desk task area -- m2

Ambient initial lumens -- lm

Ambient fixture estimate --

Glare planning prompt --

Calculation details

Room area: -- m2
Desk task area: -- m2
Ambient initial lumens: -- lm
Ambient fixture estimate: --
Task initial lumens: -- lm
Task fixture estimate: --
Suggested total fixtures: --
Glare planning prompt: --

Important notes

Check monitor reflections, daylight changes, shielding, task-plane height, and the luminaire photometric distribution.
Australian residential guidance and any AS/NZS 1680 application require current, task-specific review; this result is not an automatic compliance claim.

Formulas

\(\displaystyle A_{\mathrm{desk}} = L_{\mathrm{desk}} \times W_{\mathrm{desk}}\)
\(\displaystyle \Phi_{\mathrm{task}} = \frac{E_{\mathrm{task}} \times A_{\mathrm{desk}}}{UF \times MF}\)
Screen position, window direction, reflections, vertical illuminance, and visual comfort require separate review.

Estimate ambient and desk-task lighting quantities for a home office with a screen-glare planning prompt.

Home Office Lighting Planner 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

Formulas