Total Square Feet Formula:
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Definition: This calculator computes the total area in square feet by multiplying length and width, then adding any additional areas.
Purpose: It helps homeowners, contractors, and designers accurately measure spaces for flooring, painting, landscaping, and other projects.
The calculator uses the formula:
Where:
Explanation: The main area is calculated by multiplying length and width, then any additional separate areas are added to get the total.
Details: Accurate square footage measurements are essential for material estimation, cost calculations, and project planning.
Tips: Enter the length and width in feet, plus any additional areas in square feet. All values must be ≥ 0 (except length and width which must be > 0).
Q1: When would I use the Other Areas field?
A: Use this when your space includes separate areas like closets, alcoves, or adjacent rooms that should be included in the total.
Q2: How do I measure irregularly shaped rooms?
A: Break them into rectangular sections, calculate each separately, and sum them using the Other Areas field.
Q3: Does this include waste or overage?
A: No, consider adding 5-15% to the calculated total for cutting waste and project contingencies.
Q4: Can I use this for outdoor spaces?
A: Yes, this works for any area measurement whether indoor or outdoor.
Q5: How precise should my measurements be?
A: For most projects, measuring to the nearest 1/4 foot (3 inches) is sufficient.