Manual Room Lighting Calculator - A Simple Formula
- The Interior Tool will calculate the number of light fixtures needed to meet an average amount of illumination across the workplane for an enclosed rectangular room. THE PHOTOMETRIC TOOL The Photometric Tool provides a rich array of charts and tables summarizing the photometric performance of a light fixture.
- For indoor applications, the lighting calculator allows customers to control the size of the room, including the ceiling height; enter the desired foot candles; choose the layout of rows, columns and wall spacing; and provides a printed detailed summary at the end.
- There’s a neat and simple formula to calculate the amount of light or watts needed to properly lit up a given space. Simply multiply the area’s square footage by 1.5. This is the width and the length of the space, measured in feet, multiplied by 1.5.
- Lumen Estimation Calculator Knowing how many lamps you need to adequately illuminate a room or space can be tricky. In addition to the size of the space, a variety of factors, such as the activities being conducted and wall reflectance can also play a role.
| Lighting History | Lighting How To's | Light Bulbs and Light Sources | Lamp Styles, Lighting Styles | Lighting Spaces |
|---|---|---|---|---|
| Lamp and lighting history | How to Light Art How to Light a Bathroom How to calculate lighting for a room | Different kinds of light bulbs LED lamp lighting basics | Track Rail Lighting Create instant design using table lamps | Outdoor Home Lighting Guide Four types of kitchen lighting |
How to Calculate Lighting for a Kitchen. Note: The lighting calculation example below is calculated using the imperial system (feet). If you are working in metres, simply exchange the footcandle numbers for the appropriate lux numbers from the table and calculate your room area in square metres.
If you ever had difficulty figuring our how many light bulbs or how much lighting, outdoor lighting, ceiling lights, chandeliers, and other lighting sources it would take to light up an area such as your bedroom, kitchen, or patio, have no worries. There’s a neat and simple formula to calculate the amount of light or watts needed to properly lit up a given space.
Simply multiply the area’s square footage by 1.5. This is the width and the length of the space, measured in feet, multiplied by 1.5. The resulting number would be the amount of watts needed to light up a room properly.
How to figure out lighting for an area
Width x Length x 1.5 = Watts needed to properly light up a room.
For example, let’s figure out how much lighting a 15ft. by 10 ft. kitchen would need.
15 (width) x 10 (height) x 1.5 = 225 watts.
Therefore, the kitchen would need 225 watts of lighting in order to be properly lit.
For areas that require more lighting such as study rooms with those fancy table lamps, multiply the area’s square footage by 2.5 rather than 1.5.
by Mia Nguyen
Calculate Room Lighting Requirements