You want the size of your chandelier to complement the room that it is in. Finding the right size chandelier for your room does not have to be a difficult task. There is a simple formula that can help you. Just to give you a general idea of where to start with size, add the width and length of your room measured in feet. The sum equals the desired diameter of your chandelier measured in inches. For example, if your room is 14 feet x 16 feet, your chandelier diameter should be 30 inches. Remember, this is just a general starting point. Depending on how much your room is furnished, you may want to go larger or smaller. Also keep in mind that a chandelier will look smaller as you hang it higher. Therefore, if you have high ceilings or a two-story foyer, you might want to add a couple inches to the original size. At the same time, if you have low ceilings, you will want a smaller size so that people can walk underneath the chandelier. Generally, you will want at least 6-1/2 feet between your chandelier and the floor for someone to walk underneath it.
Many times, people choose the size of a chandelier based on a table that it will be hanging over. One recommendation is to allow 32 to 34 inches between the chandelier and the tabletop. Again, this is a general guideline, and you should allow more space if you prefer large centerpieces for your table. As far as the width of your chandelier is concerned, there are a couple suggestions for finding the right diameter of a chandelier that will be hanging over a table. One is that the diameter should be half the width of your table, and another is that the diameter should be two feet narrower than the table length.
Ultimately, use your own discretion and taste when it comes to your final decision about your chandelier size. Your opinion is the most important one.