Small rooms under 90 sq ft
Treat the room as one clear function. Use one anchor piece, shallow storage, and wall-mounted lighting where possible.
Room planning tool
Room Square Footage Calculator
Enter length and width to get square feet, square meters, and wall area before you buy flooring, paint, rugs, or furniture.
Instant estimate
Area estimate
- Room area: 120.0 sq ft.
- Estimated wall surface before doors and windows: 352.0 sq ft.
- This is a comfortable room size for one main function.
Square footage chart and conversions
Floor area for common room sizes, plus square feet to square meters both ways. Values are rounded to one decimal.
| Room (ft) | Sq ft | Sq m |
|---|---|---|
| 8 × 10 | 80 | 7.4 |
| 10 × 10 | 100 | 9.3 |
| 10 × 12 | 120 | 11.1 |
| 12 × 12 | 144 | 13.4 |
| 12 × 14 | 168 | 15.6 |
| 12 × 16 | 192 | 17.8 |
| 14 × 16 | 224 | 20.8 |
| 15 × 20 | 300 | 27.9 |
| 20 × 20 | 400 | 37.2 |
| Sq ft | Sq m |
|---|---|
| 50 | 4.6 |
| 100 | 9.3 |
| 150 | 13.9 |
| 200 | 18.6 |
| 250 | 23.2 |
| 300 | 27.9 |
| 400 | 37.2 |
| 500 | 46.5 |
| Sq m | Sq ft |
|---|---|
| 5 | 53.8 |
| 10 | 107.6 |
| 15 | 161.5 |
| 20 | 215.3 |
| 25 | 269.1 |
| 30 | 322.9 |
| 40 | 430.6 |
| 50 | 538.2 |
How to calculate square footage
- Square footage = length × width, both in feet. A 12 × 14 ft room is 168 sq ft.
- Measurements in inches: divide each side by 12 before multiplying, or divide square inches by 144.
- L-shaped or irregular rooms: split the floor into rectangles, calculate each one, then add them.
- Wall area = 2 × (length + width) × ceiling height, before subtracting doors and windows.
- 1 sq ft = 0.0929 m², 1 m² = 10.764 sq ft, and 1 sq yd = 9 sq ft.
Typical rooms from 90 to 260 sq ft
Most bedrooms, offices, and living rooms fall here. Check rug size, sofa depth, door swing, and traffic path before buying.
Large rooms over 260 sq ft
Large rooms often need zones. Use rugs, lamps, or seating groups so the space does not feel empty in person or in photos.
What to do after you know the square footage
Square footage tells you the hard limit. A photo tells you the experience. A 120 sq ft bedroom can feel generous if the door, window, and closet leave one clean furniture wall. The same size room can feel cramped if every wall has a conflict.
Use the area result to shortlist furniture, then upload a clear photo to RoomFlip to compare style directions. The AI preview is useful for visual decisions, but measurements should still guide purchases.
Room Planning Tools
Rug Size Calculator
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View details →Try Furniture Before Buying
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View details →Small Apartment Layout Ideas
Plan a studio or small apartment around zones, storage, and visual breathing room.
View details →Room Design Ideas From a Photo
Use your actual room photo to judge style and layout ideas before spending money.
View details →AI That Respects Your Room
Understand how to review AI room results that keep walls, windows, doors, and flow believable.
View details →RoomFlip AI Room Designer
Upload a room photo, sign in for free credits, and preview visual design directions.
View details →