How Many Lumens and What Color Temperature? Lighting Guide by Room
Quick answer: Size a room by lumens, not watts. Multiply the square footage of the room by the lumens-per-square-foot target below, then layer that total across a chandelier or pendant plus accent lights. Living rooms and bedrooms want 10-20 lumens per sq ft at a warm 2700-3000K; kitchens and bathrooms want 30-80 lumens per sq ft at 3000-3500K.
The Hausgem Lighting Standard: recommended lumens by room
This is our proprietary reference for how much light a room actually needs. Figures are ambient targets for LED fixtures at CRI 90 or higher; add dedicated task lighting on top for kitchens, baths and offices.
| Room | Lumens per sq ft | Example room (sq ft) | Total ambient lumens | Ideal color temp |
|---|---|---|---|---|
| Living room | 10-20 | 16 by 14 (224) | 2,200-4,500 | 2700-3000K |
| Bedroom | 10-20 | 12 by 12 (144) | 1,500-2,900 | 2700K |
| Kitchen (ambient) | 30-40 | 12 by 12 (144) | 4,300-5,800 | 3000-3500K |
| Kitchen (counter task) | 70-80 | per work zone | plus 500-800 each | 3500-4000K |
| Dining room | 30-40 | 12 by 12 (144) | 4,300-5,800 | 2700-3000K |
| Bathroom (vanity) | 70-80 | 8 by 6 (48) | 3,400-3,800 | 3000-4000K |
| Home office | 60-70 | 10 by 10 (100) | 6,000-7,000 | 3500-4500K |
| Foyer / entry (2-story) | 20-30 | statement piece | 3,000-6,000 plus | 2700-3000K |
| Hallway | 5-10 | per running section | 600-1,200 | 2700-3000K |
| Staircase | 5-10 | per flight | 600-1,200 | 2700-3000K |
Color temperature (Kelvin) by room and use
Kelvin controls the mood. Lower numbers are warmer and cozier; higher numbers are cooler and more alerting. Match the room to its job:
| Kelvin | Appearance | Best rooms and uses | Feel |
|---|---|---|---|
| 2700K | Warm white | Living rooms, bedrooms, dining rooms | Cozy, relaxing, flattering |
| 3000K | Soft white | Kitchens, bathrooms, foyers, closets | Clean but still warm |
| 3500K | Neutral white | Home offices, laundry, task zones | Balanced, easy on the eyes |
| 4000K | Cool white | Garages, workshops, detailed tasks | Crisp and energizing |
| 5000K plus | Daylight | Vanity, makeup, art studios, color work | Maximum color accuracy |
How to use these numbers
- Measure the room in square feet (length by width).
- Multiply by the lumens-per-sq-ft target for that room.
- Layer the total: a statement chandelier or pendant for ambient light, then sconces and lamps for depth.
- Put it on a dimmer so one fixture covers bright tasks and low evening moods - see our dimmable chandeliers.
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Frequently asked questions
How many lumens do I need for a living room?
For a typical 200-250 sq ft living room, aim for roughly 2,500-4,500 lumens of ambient light (about 10-20 lumens per sq ft), layered across a chandelier or pendant plus lamps. Keep it dimmable and warm at 2700-3000K.
How many lumens do I need for a bedroom?
A 12 by 12 ft bedroom needs about 1,500-2,900 lumens of ambient light (10-20 lumens per sq ft) at a warm 2700K. Put it on a dimmer so you can wind down in the evening.
How many lumens do I need for a kitchen?
Plan for 4,300-5,800 lumens of ambient light in a 12 by 12 ft kitchen (30-40 lumens per sq ft) at 3000-3500K, plus 500-800 lumens of task light over each counter or island zone.
What color temperature (Kelvin) is best for each room?
Use 2700-3000K warm white for living rooms, bedrooms and dining rooms; 3000-3500K for kitchens and bathrooms; and 3500-4500K neutral-to-cool for home offices and detailed task areas.
What is the difference between lumens and watts?
Lumens measure brightness; watts measure energy use. With LED you should size a room by lumens - a quality LED delivers about 800 lumens using only 8-10 watts.
