How Many Square Feet Is 100x100?
An area of 100x100 feet is 10,000 square feet (100 × 100). That is 1,111.1 square yards, 929 square meters or 0.23 acres, about 2.1 times the area of an NBA basketball court (94 x 50 ft).
100x100 feet in other units
| Measure | Value |
|---|---|
| Square feet | 10,000 sq ft |
| Square yards | 1,111.1 sq yd |
| Square meters | 929 sq m |
| Acres | 0.23 acres |
| Perimeter | 400 ft |
| Diagonal (corner to corner) | 141.4 ft |
Square feet = length × width = 100 × 100 = 10,000. Square yards = sq ft ÷ 9, square meters = sq ft × 0.0929, acres = sq ft ÷ 43,560. About 4 areas of 100x100 ft fit in one acre.
Materials for 10,000 square feet
| Project | Amount |
|---|---|
| Flooring or tile, with 10% extra for cuts | 11,000 sq ft |
| Mulch, 3 inches deep | 92.59 cu yd |
| Gravel, 4 inches deep | 123.46 cu yd (about 172.84 tons) |
| Concrete slab, 4 inches thick | 123.46 cu yd |
Volumes are before any extra for settling or spillage. Use the tile calculator, gravel calculator or concrete calculator for the exact order, with extra and cost.
Not a perfect rectangle?
Measure an L-shaped room, a triangular corner or a lot with a diagonal side with the square footage calculator. It works in feet, inches, yards or meters, and subtracts closets, stairs or any area you do not want to count. For painting, the wall area matters more than the floor: see the paint calculator.
Frequently asked questions
How many square feet is a 100x100 room?
A 100x100 ft room is 10,000 square feet. Multiply the length by the width: 100 × 100 = 10,000 sq ft.
How many square yards is 100x100 feet?
10,000 square feet is 1,111.1 square yards. A square yard is 3 ft × 3 ft = 9 square feet, so divide the square feet by 9.
How many square meters is 100x100 feet?
10,000 square feet is 929 square meters. Multiply the square feet by 0.0929 (1 ft = 0.3048 m, so 1 sq ft = 0.09290304 sq m).
How many acres is 100x100 feet?
10,000 square feet is 0.23 acres. An acre is 43,560 square feet, so about 4 areas of 100x100 ft fit in one acre.
How do I find the square footage of an L-shaped or irregular space?
Split the space into rectangles, multiply length by width for each one and add the results. The square footage calculator does this for L-shapes, triangles, circles and lots with a diagonal, and subtracts areas you do not need.
Other sizes
Figures are for a rectangle measured in feet. Real rooms have walls with thickness and lots have boundaries, so measure the actual space.