How Many Square Feet Is a 9x10 Room?

A 9 × 10 ft room is 90 square feet, which is 10.00 square yards or 8.36 square meters. The perimeter is 38 ft. For flooring buy about 99 sq ft (5 boxes) to allow for waste.

Jump to your result ↓

Your project

Results

Example job shown. Change the numbers to match yours.

Area
90.00 ft²
Square yards
10.00 yd²
Square meters
8.36 m²
Acres
0.0021 acres
Perimeter
38.00 ft
  • For an irregular area, split it into rectangles, triangles and circles, calculate each, and add them up.

Blueprint

90 ft²9 ft10 ft

90 ft² area

9x10 in square feet, square yards and square meters

A small bedroom or a home office is about this size. The area is length times width: 9 × 10 = 90 sq ft. Measure to the walls at the longest point, and add closets and alcoves you will floor.

UnitThis room
Square feet90 sq ft
Square yards10.00 sq yd
Square meters8.36 sq m
Perimeter (around the walls)38 ft
Acres0.00207 acres

What to buy for 90 sq ft

MaterialAmount
Flooring (10% waste, 20 sq ft boxes)99 sq ft, 5 boxes
Carpet off a 12 ft roll (before trimming)12.0 sq yd, one piece
12 × 12 in tiles (10% waste)99 tiles
Baseboard (full perimeter, before doorways)38 ft

Flooring with different waste allowances

Straight layouts need about 5 to 7%, diagonal layouts 10%, and herringbone or patterns 15%.

WasteFlooring to buyBoxes of 20 sq ft
5% waste95 sq ft5
10% waste99 sq ft5
15% waste104 sq ft6

Use the square footage calculator for L-shaped rooms, circles and triangles, the carpet calculator for the roll layout with trimming, or the flooring calculator and flooring for a 9x10 room for a full flooring estimate.

A 9 × 10 room: 90 square feet for a small bedroom or office

Nine by ten is 90 sq ft, one step below the 10 × 10 that many listings treat as the smallest bedroom. It takes a single bed, a desk and a chest of drawers, or a desk and shelving as an office. With a 5 × 8 ft rug there is 2.0 ft of bare floor along each side and 1.0 ft at each end. The perimeter is 38 ft.

To floor it you need 99 sq ft including a tenth for cuts, so 5 boxes of plank, or 99 tiles of 12 in. Carpet is 12.0 sq yd, one 12 ft wide piece off the roll. Painting is a small job: 253 sq ft of wall once a door and two windows are out, 1.45 gallons for two coats, plus 0.51 gallons if the ceiling is included.

Want to change anything else? The calculator above is the full Square Footage Calculator: edit any number and the results update instantly.

Frequently asked questions

How many square feet is a 9x10 room?

90 square feet (9 ft × 10 ft). That is 10.00 square yards or 8.36 square meters.

How many square feet of flooring do I need for a 9x10 room?

The floor is 90 sq ft, so buy about 99 sq ft with 10% for cuts and waste. That is 5 boxes at 20 sq ft a box.

How much carpet is a 9x10 room?

10.00 square yards of floor. Carpet comes off a 12 ft wide roll, so you buy whole strips: here one 12 ft wide piece 9 ft long, which is 108 sq ft (12.0 sq yd) of carpet for a 90 sq ft floor, plus a few inches a strip for trimming.

Related sizes and guides

Estimates only. Results assume standard materials and simple shapes. Supplier products vary, and the final call on quantity, structure and safety is yours. Check your local code and your supplier's guidance before ordering.