How Many Square Feet Is a 15x15 Room?
Total area
225 sq ft
Fifteen feet by fifteen feet.
How that number is worked out
These are the figures this page was built with and every line the calculator produces from them. Change anything above and all of it moves.
- Length15 ft
- Width15 ft
- How many rooms or areas this size1
- Extra area to add0 sq ft
Total area225 sq ft
| One area | 225 sq ft |
|---|---|
| Times 1, plus extra | 225 sq ft |
| Square yards | 25 |
| Square meters | 20.9 |
| Perimeter of one area | 60 ft |
What else matters here
Two hundred and twenty five square feet, a normal family room, and the size at which ceiling fan and light fixture sizing is usually asked.
Fans are picked by the longest wall as much as by the area: up to 12 feet takes a 42 inch fan, 12 to 15 feet a 52 inch, and above that a 56 inch or two fans. Hang the blades 8 to 9 feet off the floor and at least 18 inches from any wall. For general lighting a rough starting point is 20 lumens per square foot in a living room, so around 4,500 lumens here, and a single central fixture will not deliver it evenly no matter how bright it is.
What this calculator assumes
- Length times width, times how many areas are that size. For an L shaped room, split it into two rectangles and run this twice.
- Square yards are square feet divided by nine, which is how carpet is still quoted in much of the country.
Questions people ask
How many square feet is a 15x15 room?
225 square feet, which is exactly 25 square yards and 20.9 square meters.
What size ceiling fan for a 15x15 room?
A 52 inch fan suits a room with walls of 12 to 15 feet. Hang it 8 to 9 feet above the floor and keep the blade tips at least 18 inches from the wall.
How much light does a 15x15 room need?
Around 4,500 lumens for a living room, using a rough figure of 20 lumens per square foot, and spread across several fixtures rather than one.
The square footage calculator takes any dimensions you like and hands back the same list.