Recessed lighting Calculator

Recessed Lights are some of the most effective and versatile types of lighting for creating both ambient and task lighting in any room of your home. In the recent years they have gained in popularity and found themselves into most new homes and renovation projects. Because they are for the most part hidden, recessed lights typically make the rooms of home appear larger than they are. Gone are the days where you need to go for large cumbersome ceiling fixtures to light up a room. In short, recessed lighting by the quality of light they provide and their minimalist design bring out the best of just about any home.
Determining how many recessed lights you need and the proper spacing implies that you have already chosen the recessed light you wish to use for your project. If you haven’t chosen your recessed light model yet, below is a list of considerations you will want to look into before you make your choice.

• Trim color (white, matte white, chrome, brushed chrome, metallic grey, satin nickel, brushed nickel, black, bronze, silver, gold plated…)
• Trim shape (round, square, rectangular)
• Trim type (adjustable spotlight, fixed, for the shower) & the trim size (3", 4", 5", 6")
• Application type (interior lighting, exterior lighting or shower use)
• How much power you need (300-400 lumens, 500-600 lumens, 600-800 lumens, 1000 +…)
• Housing type (IC rated, airtight, renovator style, new construction style)
• The lighting source (LED recessed lights, recessed halogen, low voltage, incandescent)
• Light color temperature (2700K, 3000K, 4000K, 5000K+)
• Bulb type (LED, Halogen, CFL)

Now that you have chosen the correct recessed light for your project, the only thing left to do is determine how many you need for the lit area and what the recommended spacing is for your room configuration. Knowing the number of lights you need will help you establish a budget for your project and will help you create your light plan which will allow you to get the best results!

Please note that light intensity in the vast majority of recessed light models can adjusted using a dimmer. This allows you to quickly create a different ambiance for any room of your home. You can lower the intensity of your lights to create a relaxing atmosphere and increase the intensity in order to create task lighting for when your children sit down in the evening to do their homework. Great versatility, subtleness and elegance is the reason why recessed lights are the perfect choice for many lighting projects.

So now that you have chosen your recessed lights, how many do you need for your project? Below you will find a calculator that will help you create your lighting plan in order to get the best results!

You only need to fill out the blank in the recessed lighting calculator according to your needs for

1. The brightness of the recessed light you have chosen (measured in lumens)
2. The ceiling height of the room you are lighting
3. The room type where the lights will be installed. Light intensity requirements are different for the different rooms of your home. This is why room type will largely influence the spacing and ultimately the number of lights required for a specific room.
   1. Bathroom
   2. Kitchen
   3. Hallway
   4. Living Room
   5. Bed Room
4. The room length
5. The room width

By taking these five important parameters into consideration, the recessed lighting calculator allows you to find the optimal spacing and quantity of recessed light needed for your project:



Result = Number of recessed lights and Spacing

As an example, if your recessed light output is 400-499 lumens, that your ceiling height is 8 foot, that you want to install your recessed lights in the kitchen, that your length and the width of your room is 10’ x 10’ feet, the quantity of recessed lights required will be 12 units. The recommended spacing between the recessed lights would be of 30” inches.

* Quick Tip *

For spacing between the wall and your nearest recessed light, the rule of thumb we recommend is to divide the space in between the lights by two in order to obtain the optimal measure. This means that for the example above, our spacing with the recessed lights and the closest walls would be 15” (30”/2 = 15”). 

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