Free Online Lux Level Estimator for Room Lighting

Calculate illuminance levels based on your room dimensions and light sources

Settings

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Lighting Analysis

Welcome to Lux Level Estimator

Fill in your room details and lighting specifications on the left, then click "Calculate Lux Level" to analyze your lighting conditions.

How it works:
  1. Select your room type/purpose
  2. Enter your room dimensions
  3. Specify your light sources
  4. Click calculate to see results

Lighting Guide

  • General Living 100-300 lux
  • Office/Workspace 300-500 lux
  • Kitchen 300-500 lux
  • Bedroom 100-200 lux
  • Bathroom 200-300 lux
  • Reading Area 500-800 lux
  • Workshop 700-1000 lux
  • Art Studio 1000-1500 lux

  • Incandescent 10-17 lm/W
  • Halogen 12-22 lm/W
  • CFL 50-70 lm/W
  • Fluorescent Tube 60-100 lm/W
  • LED 80-120 lm/W

Too Dim?
  • Increase number of light sources
  • Use higher lumen bulbs
  • Add task lighting
  • Use lighter wall colors
Too Bright?
  • Use dimmer switches
  • Reduce number of lights
  • Use lower wattage bulbs
  • Install shades or diffusers

Quick Examples