# Difference Between Feet and Square Feet

The length of anything is measured in inches or feet. The feet is the plural form of foot, which is a non-SI unit of length in the imperial and the United States customary systems of measurement. However, when describing an architectural space – whether rectangle or square – the area is to be calculated using two measurements as area is a two-dimensional measurement. The area of a room is calculated by multiplying the length and width of the room in feet. For example, if a room is 15 feet in length and 12 feet in width, then the area of the room is 15 multiplied by 12 which equals to 180 square feet.

## Difference between Feet and Square Feet

### Basics of Feet Vs. Square Feet

The feet (plural of foot) is the non-SI unit for measuring length as specified in the imperial and the US customary units of measurement. It is used to measure height, length, and distance. The square feet is the non-SI unit for measuring area, mainly in the United States. It is the plural of square foot used to measure any two-dimensional space.

### Symbol & Calculation of Feet Vs. Square Feet

The international symbol for feet is “ft”, whereas square feet is symbolized as “sq ft.” or “ft^{2}”. The area of a rectangular or square room is calculated in square feet by multiplying the length and width of the room in feet. If a room is 12 feet in length and 12 in width, then the area of the room equals to (12*12) 144 sq ft.

### Conversion of Feet Vs. Square Feet

1 foot converts to 12 inches or 0.3048 meters. Similarly, 1 square feet is equivalent to 0.092903 square meters or 144 square inches. An area of 1 square feet would be 12*12 inches squared. Feet is a single dimensional unit, whereas square feet is a two-dimensional unit for area.

### Examples of Feet Vs. Square Feet

If a room measures 15 feet in length and 10 feet in width, then the area of the room is calculated as:

Area = 15 × 10 = 150 square feet or 150 sq ft. or 150 ft^{2}

### Feet vs. Square Feet: Comparison Chart

## Summary of Feet and Square Feet

When you measure the length of anything, it is measured in inches or feet, but area is a two-dimensional measurement, so it is calculated by two measurements – the length and width. To calculate an architectural space in square feet, the length and width are measured in feet, and then multiplied together to obtain the area in square feet or ft^{2}. Foot is the non-SI unit for measuring length, whereas square foot is the non-SI unit of measuring area.

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## References :

[0]Image credit: https://www.maxpixel.net/Feet-Measurement-Foot-Meter-Centimeter-Millimeter-1476918

[1]Qasim, S.H. SI Units in Engineering and Technology. NYC: Elsevier, 2016. Print

[2]Taylor, Barry. Guide for the Use of the International System of Units (SI): The Metric System. Pennsylvania: DIANE Publishing, 1995. Print

Really useful write up,helping out right now.

Ft square indicates something that is the same length on 4 sides Thus something that was 10 ft square would be 10’ by 10’ thus 100 square ft.

Square ft on the other hand is an equation made by multiplying the length times the width, again as shown above.