Square Footage Formula:
From: | To: |
Square footage is a measurement of area expressed in square feet. It represents the total floor space of a room or building and is commonly used in real estate, construction, and interior design to quantify space.
The calculator uses the basic area formula:
Where:
Explanation: This formula calculates the area of a rectangular space by multiplying its length by its width. The result represents the total floor area in square feet.
Details: Accurate square footage calculation is essential for determining material requirements (flooring, paint, etc.), property valuation, space planning, and compliance with building codes and regulations.
Tips: Enter the length and width measurements in feet. Ensure measurements are taken at the longest points and are accurate. All values must be positive numbers greater than zero.
Q1: How do I measure irregularly shaped rooms?
A: For irregular shapes, divide the room into rectangular sections, calculate each section separately, then sum the areas.
Q2: Should I include closets and alcoves?
A: Yes, include all permanent floor space. Measure each distinct area and add them together for the total square footage.
Q3: How accurate should my measurements be?
A: For most purposes, measurements to the nearest inch (0.08 feet) are sufficient. For precise calculations, measure to the nearest 1/4 inch.
Q4: Can I use this for metric measurements?
A: This calculator uses feet. For metric, convert measurements to feet first or use a square meter calculator with the same formula.
Q5: What about rooms with slanted ceilings?
A: Only include areas where the ceiling height is at least 5 feet (typical building code requirement for habitable space).