How Many Square Feet Is a 9x12 Room?
Total area
108 sq ft
Nine feet by twelve 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.
- Length9 ft
- Width12 ft
- How many rooms or areas this size1
- Extra area to add0 sq ft
Total area108 sq ft
| One area | 108 sq ft |
|---|---|
| Times 1, plus extra | 108 sq ft |
| Square yards | 12 |
| Square meters | 10.03 |
| Perimeter of one area | 42 ft |
What else matters here
A hundred and eight square feet, and the size that gave the 9 by 12 area rug its name. That rug is the default large size in almost every catalog, and it is sized to a room rather than to a floor.
The usual rule is 18 to 24 inches of bare floor showing on every side, which means a 9 by 12 rug suits a room around 12 by 15 or 13 by 16, not a 9 by 12 room. Put a 9 by 12 rug in a 9 by 12 room and it runs wall to wall, which is broadloom carpet with an unfinished edge. In a living room the better test is whether the front legs of every seat land on the rug.
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 9x12 room?
108 square feet, which is exactly 12 square yards and 10.03 square meters.
What size room does a 9x12 rug fit?
Roughly a 12 by 15 or 13 by 16 room, if you want the usual 18 to 24 inches of floor showing on each side.
How do you pick an area rug size?
Leave 18 to 24 inches of floor around it in a room with walls, and make sure the front legs of every seat sit on it in a living room.
The square footage calculator takes any dimensions you like and hands back the same list.