Home/Room Lux Calculator

Room Lighting & Fixture Calculator

Determine the precise total lumens and number of LED fixtures required for your space using room dimensions and Illuminating Engineering Society (IES) standards.

Room Specifications

Room Type

Room Dimensions (ft)

Width (ft)

Length (ft)

Area: 224 sq ft (20.8 m²)

Ceiling Height

Wall Paint Reflectance

Preferred Bulb Size

Calculated Lighting Requirement

1,500 Lumens Total

Target: 100 Lux (10 fc)

Recommended Fixtures

2 Bulbs

at 800 lumens each

Total LED Power Draw

18 Watts

Replaces 120W incandescent

Recommended Lighting Layout

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Recommended Bulb Specification

Color Temp2700K

Suggested FormA19 Standard

Min. CRI90+ CRI (Task)

Official Illumination Guidelines

IESNA Recommended Lux Standards By Room

Standard target illuminance levels recommended by the Illuminating Engineering Society of North America (IESNA) for residential and home-office environments.

Room / Activity Area	Target Lux (lx)	Target Foot-Candles	Ideal Color Temp (CCT)	Lighting Architecture Strategy
Bedroom Cozy warm light protecting sleep melatonin	100 lx	10 fc	2700K	A19 Soft White LED
Living Room Warm ambient and reading relaxation	150 lx	15 fc	3000K	A19 / BR30 Dimmable LED
Home Office / Study Neutral task light maximizing alertness	250 lx	25 fc	4000K	A19 Neutral White / Desk Lamp
Kitchen Bright food preparation task illumination	300 lx	30 fc	3500K	BR30 / Recessed Downlight
Bathroom Clean diffuse grooming & vanity lighting	250 lx	25 fc	3500K	Wet-Rated Flush Mount / G25
Dining Room Warm ambient and dining table task lighting	150 lx	15 fc	2700K	Chandelier / Filament LED
Garage / Workshop High-output task lighting for projects and crafts	400 lx	40 fc	5000K	4ft LED Shop Light / High Lumen LED