Home
Back
Square Footage Formula:
| From: | To: |
Square footage calculation measures the total area of a space by summing the areas of individual rooms. It's essential for real estate valuation, construction planning, and interior design projects.
The calculator uses the formula:
Where:
Explanation: The calculator multiplies the length and width of each room to get its area, then sums all room areas to calculate the total square footage.
Details: Accurate square footage calculation is crucial for property valuation, determining material requirements for construction or renovation, space planning, and complying with building codes.
Tips: Enter the length and width for each room in feet. Add more rooms using the room counter. All values must be positive numbers. The calculator will sum the area of all rooms to give you the total square footage.
Q1: Should I include closets and hallways in my calculation?
A: Yes, for accurate total square footage, include all enclosed spaces including closets, hallways, and built-in storage areas.
Q2: How do I measure irregularly shaped rooms?
A: Divide irregular rooms into rectangular sections, calculate each section's area separately, then sum them together.
Q3: Does square footage include wall thickness?
A: Typically, interior measurements are taken from inside wall to inside wall, excluding wall thickness. For exterior measurements, include wall thickness.
Q4: How accurate should my measurements be?
A: For most purposes, measurements to the nearest inch (0.01 feet) are sufficient. For precise construction work, measure to 1/8 inch (0.01 feet).
Q5: Should I measure in feet or meters?
A: This calculator uses feet, as it's the standard unit for square footage in countries using the imperial system. For metric measurements, convert to square meters (1 sq ft = 0.0929 sq m).