Room square feet calculator
Square footage is length times width. Type your rooms and see every area, the total and a floor plan you can export.
- No password needed
- Feet or meters
- PNG, PDF or SVG
Bedroom
Measured · ANSI Z765 mode
Bedroom16.72 m²
Total, 2 bed · 2 bathANSI Z765 · 89.2 m²
The editor opens with this room, inside sizes, ready to draw the rest of the home.
Try it
Every room adds up. We did the math.
A floor plan of a two-bedroom apartment of 960 sq ft: two bedrooms of 180 sq ft, two baths of 108 sq ft, a kitchen and living room of 384 sq ft and a balcony of 60 sq ft that does not count.
- Type rooms the way you say them
- Every room adds up
How to use
How to use this calculator
Three steps, about a minute per room.
-
Measure each room
Wall to wall at floor level. A tape or a laser measure both work.
-
Enter length and width
Feet and inches, or meters. Split an L-shaped room into two parts.
-
Get the area and the plan
Every room, the total, and a floor plan to export as PNG, PDF or SVG.
Examples
Rooms that are not a rectangle
Split the room into rectangles, work out each one and add them up.
- Draw this shape →
A 120 sq ft + B 36 sq ft
L-shaped room
156 sq ft
Two rectangles: 10 × 12 ft is 120 sq ft and 6 × 6 ft is 36 sq ft. Together 156 sq ft.
- Draw this shape →
Bedroom 132 sq ft
Bedroom with a closet
144 sq ft
The room is 12 × 11 ft, or 132 sq ft. The closet adds 6 × 2 ft, so the total is 144 sq ft.
- Draw this shape →
Counts 96 sq ft · under 5 ft: 96
Attic with a sloped ceiling
96 sq ft
Under ANSI Z765 only the part with a ceiling of at least 5 ft counts: here 96 of the 192 sq ft.
Explanation
How to calculate square footage
Measure the length and the width of the room in feet, then multiply the two. The result is the area in square feet.
Measured in feet and inches? Divide the inches by 12 first: 14 feet 6 inches is 14.5 feet.
For a listing or an appraisal in the US, ANSI Z765 measures from the outside walls, so that total is a little higher than the sum of the rooms.
Read the ANSI Z765 rules →Area = length × width · 14 ft × 12 ft = 168 sq ft
Three rooms, their length and width and the area of each, with the total.
| Room | Length | Width | Area (sq ft) |
|---|---|---|---|
| Living room | 18′ 4″ | 13′ 2″ | 241 |
| Kitchen | 12′ 0″ | 10′ 6″ | 126 |
| Bedroom | 14′ 0″ | 11′ 6″ | 161 |
| Total | 528 |
Questions
Questions
About this calculator. Can’t find your answer? Send us a message.
info@squaremetry.comHow do I calculate the square footage of a room?
Measure the length and the width in feet and multiply them. A room of 14 by 12 feet is 168 square feet. For an L-shaped room, split it into rectangles and add them up.
How do I convert inches to feet?
Divide the inches by 12 and add them to the feet. 14 feet 6 inches is 14.5 feet, and 11 feet 3 inches is 11.25 feet. You can also type 14' 6" and the calculator does it for you.
Does a closet count as square footage?
Yes. A closet is finished floor inside the home, so it counts. Measure it on its own and add it to the room, like the 6 by 2 foot closet in the example above.
How do I get the area in square meters?
Multiply the square feet by 0.0929. The calculator shows both: the area in square feet and, next to it, the same area in square meters.
Can I export the result as a floor plan?
Yes. Draw the room in the editor and export it as PNG, SVG or a PDF to scale, with the dimensions and the area on the plan.
Related tools
Related tools
- Open the calculator →
House square footage
Every room and floor, with what counts and what doesn’t.
- Read the guide →
How to measure square footage
Where to hold the tape, and what to do with closets, stairs and sloped ceilings.
- Start drawing →
Floor plan maker
Draw your rooms to scale and export a clean floor plan.
- Work it out →
How to calculate square footage
Rectangles, L-shapes and triangles, with worked examples.
Start with your first floor plan
Your first home is free for 30 days, no card needed. After that: $5 per home, or Pro from $24 a month.
or sign in with a code by email