20 feet squared equals 400 square feet.
This means if you take a length of 20 feet and measure its area, you get 400 square feet, because area in square units is calculated by multiplying length by width, assuming both are 20 feet in this case.
Understanding the Conversion
This conversion involves changing a linear measurement in feet into an area measurement in square feet. Since feet measure length, to get area, you multiply the length in feet by the width in feet. For example, if you have a square that is 20 feet on each side, the area is calculated as 20 feet times 20 feet, which equals 400 square feet.
Conversion Tool
Result in square:
Conversion Formula
The formula for converting feet to square feet is simple: area = length × width. When only one measurement is given, it is assumed the shape is a square, so the length is multiplied by itself. For example, 20 feet multiplied by 20 feet equals 400 square feet. This works because area is a two-dimensional measurement, and multiplying the linear measurement by itself gives the total surface covered.
Conversion Example
– Convert 30 feet to square:
– Step 1: Recognize that the shape is square, so use 30 feet for both length and width.
– Step 2: Multiply 30 × 30 = 900.
– Step 3: Result is 900 square feet.
– Convert 15 feet to square:
– Step 1: Assume a square shape.
– Step 2: Multiply 15 × 15 = 225.
– Step 3: The area is 225 square feet.
– Convert 50 feet to square:
– Step 1: Square shape assumed.
– Step 2: 50 × 50 = 2500.
– Step 3: The area equals 2500 square feet.
Conversion Chart
| Feet | Square Feet |
|---|---|
| -5.0 | 25.0 |
| 0.0 | 0.0 |
| 5.0 | 25.0 |
| 10.0 | 100.0 |
| 15.0 | 225.0 |
| 20.0 | 400.0 |
| 25.0 | 625.0 |
| 30.0 | 900.0 |
| 35.0 | 1225.0 |
| 40.0 | 1600.0 |
| 45.0 | 2025.0 |
Use this chart to quickly find the square footage for any number of feet between -5 and 45. Just look up the feet measurement in the first column and see its squared value in the second.
Related Conversion Questions
- How many square feet are in 20 feet length and width combined?
- What is the area of a 20-foot by 10-foot room in square feet?
- Convert 20 feet into square yards?
- How do I find the square footage of a space that measures 20 feet by 30 feet?
- What is the difference in area between 20 feet by 20 feet and 20 feet by 25 feet?
- Can I convert 20 feet into square meters directly?
- What calculation do I need to do to find the square footage of a 20-foot long hallway?
Conversion Definitions
“Feet” is a unit of length used primarily in the US customary system, equal to 12 inches, representing distance or height measurement of objects or spaces.
“Square” refers to a two-dimensional shape with four equal sides and internal angles of 90 degrees, but in measurement, ‘square’ indicates an area unit derived by multiplying a length by itself, such as square feet or square meters.
Conversion FAQs
How is the area in square feet calculated from feet measurements?
The area in square feet is calculated by multiplying the length in feet by the width in feet. If only one measurement is given, it is assumed the shape is a square, so the same measurement is used for both sides.
Can I convert feet to square meters directly?
No, you cannot convert feet directly to square meters without first converting feet to meters. To convert square feet to square meters, multiply the area in square feet by 0.092903.
What shapes can be measured using feet and square feet?
Any shape with measurable length and width, such as rooms, floors, or plots of land, can be measured in feet and their areas in square feet, assuming the shape is rectangular or square.
Why is the conversion from feet to square feet squared?
This is because area is a two-dimensional measurement. When converting a linear measurement like feet into an area, the process involves squaring the measurement to account for both length and width.
What if the shape isn’t a perfect square? How do I convert feet to square?
For rectangular shapes, multiply length and width separately in feet to get the area in square feet. For irregular shapes, divide into smaller rectangles, calculate each area, then sum them.