Square Footage Calculator By Shape

Common Area Formulas:

Circle: \( \text{Sq Ft} = \pi r^2 \)
Square/Rectangle: \( \text{Sq Ft} = \text{length} \times \text{width} \)
Triangle: \( \text{Sq Ft} = \frac{1}{2} \times \text{base} \times \text{height} \)

Select Shape:

Radius:

feet

Length:

feet

Width:

feet

Base:

feet

Height:

feet

Square Footage:

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1. What is Square Footage?

Square footage is a measurement of area, expressed in square feet (sq ft). It's commonly used in real estate, construction, and interior design to measure the size of spaces.

2. How to Calculate Square Footage

The calculation method depends on the shape of the area:

Circle: \( \text{Sq Ft} = \pi r^2 \) (where r is radius)
Square/Rectangle: \( \text{Sq Ft} = \text{length} \times \text{width} \)
Triangle: \( \text{Sq Ft} = \frac{1}{2} \times \text{base} \times \text{height} \)

3. Importance of Square Footage Calculation

Details: Accurate square footage calculations are essential for determining material quantities, property valuations, space planning, and compliance with building codes.

4. Using the Calculator

Tips: Select the shape, enter the required dimensions in feet, and click Calculate. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How do I measure irregular shapes?
A: Break them down into regular shapes (rectangles, triangles), calculate each separately, then sum the areas.

Q2: Does square footage include wall thickness?
A: It depends on the purpose. For flooring, exclude walls. For property size, typically include exterior walls.

Q3: How accurate should my measurements be?
A: For most purposes, measuring to the nearest inch (0.08 feet) is sufficient. For precise work, measure to 1/8 inch.

Q4: How do I convert square feet to square meters?
A: Multiply square feet by 0.092903 to get square meters.

Q5: What's the difference between net and gross square footage?
A: Gross includes all space (walls, mechanical areas), while net is just usable space.