Room Square Footage Calculator
Calculate how many square feet in a room. Get instant results for square footage, tiles needed, paint required, and flooring materials.
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Room Square Footage Calculator
Calculate how many square feet in a room. Get instant results for square footage, tiles needed, paint required, and flooring materials.
Common Room Sizes Reference
| Room Dimensions | Area (sq ft) | Area (sq m) | Typical Use |
|---|---|---|---|
| 8×10 ft | 80 | 7.43 | Small bedroom |
| 10×10 ft | 100 | 9.29 | Standard bedroom |
| 10×12 ft | 120 | 11.15 | Medium bedroom |
| 12×12 ft | 144 | 13.38 | Master bedroom |
| 12×14 ft | 168 | 15.61 | Large bedroom |
| 14×16 ft | 224 | 20.81 | Living room |
| 15×15 ft | 225 | 20.90 | Family room |
| 20×20 ft | 400 | 37.16 | Large living room |
| 10×15 ft | 150 | 13.94 | Dining room |
| 8×8 ft | 64 | 5.95 | Bathroom |
| 5×8 ft | 40 | 3.72 | Small bathroom |
| 10×20 ft | 200 | 18.58 | Garage (1-car) |
| 20×20 ft | 400 | 37.16 | Garage (2-car) |
Why Use Our Room Calculator?
Our room square footage calculator helps you accurately measure room sizes and estimate materials for your home improvement projects. Whether you're planning flooring, tiling, or painting, get precise calculations instantly.
Key Features
- ✓Calculate room area in multiple units
- ✓Estimate tiles needed with waste factor
- ✓Calculate paint required for walls and ceiling
- ✓Flooring material estimation
- ✓Quick presets for common room sizes
Formula
Area = Length × WidthExample: 10 ft × 12 ft = 120 sq ft
Other Common Room Sizes
Frequently Asked Questions
How do I calculate square footage of a room?▼
Multiply the room's length by its width. For example, a 10×12 room has 120 square feet (10 × 12 = 120 sq ft).
How many square feet is a 10×10 room?▼
A 10×10 room is 100 square feet (10 ft × 10 ft = 100 sq ft), which equals approximately 9.29 square meters.
How many square feet is a 12×12 room?▼
A 12×12 room is 144 square feet (12 ft × 12 ft = 144 sq ft), which equals approximately 13.38 square meters.
How much tile do I need for my room?▼
Divide the room's square footage by the tile's square footage, then add 10-15% for waste. For example, for a 100 sq ft room with 12×12 inch tiles (1 sq ft each), you need 110-115 tiles.
How much paint do I need for a room?▼
Calculate the wall area (perimeter × height), then divide by the paint coverage (typically 350 sq ft/gallon). Multiply by the number of coats needed.