Calculate square footage for rooms, floors, slabs, patios, yards, and other jobsite areas. Enter length and width in feet.
To find square footage, multiply the length of the area by the width of the area. Both measurements should be in feet.
Formula: length × width = square feet
Example: 12 feet × 10 feet = 120 square feet.
| Length | Width | Square Feet |
|---|---|---|
| 8 ft | 10 ft | 80 sq ft |
| 10 ft | 10 ft | 100 sq ft |
| 12 ft | 10 ft | 120 sq ft |
| 12 ft | 12 ft | 144 sq ft |
| 15 ft | 20 ft | 300 sq ft |
| 20 ft | 25 ft | 500 sq ft |
This square footage calculator is useful for estimating flooring, paint coverage, concrete slabs, turf, carpet, tile, room size, patios, decks, and other rectangular areas.
Multiply length by width. For example, a 12-foot by 10-foot room is 120 square feet.
Enter both length and width in feet. If you have inches, convert them to feet first or use the feet to inches converter.
Yes. This gives the area of the slab in square feet. For concrete volume, use the concrete bag calculator.
Yes. Decimal values like 12.5 feet or 8.75 feet work.