Area Calculator
Calculate area for common two-dimensional shapes including rectangles, squares, triangles, circles, trapezoids, parallelograms, ellipses and circular sectors. Select the input measurement unit, enter the dimensions required by the chosen shape and see the area in the original square unit plus converted square meters, square feet and square yards. The tool is useful for geometry, floor planning, land measurements, materials and everyday spatial calculations.
How to use the Area Calculator
- Select the two-dimensional shape.
- Choose the unit used for its linear dimensions.
- Enter the dimensions requested for the selected shape.
- The calculator applies the corresponding geometry formula.
- The main answer is shown in the selected square unit.
- The result is also converted to square meters, square feet and square yards.
- Use a dedicated Square Footage Calculator when your task specifically involves rooms, floors or rectangular property dimensions.
Examples
Rectangle area
A rectangle 10 m long and 5 m wide has area 10 × 5 = 50 m².
Square area
A square with side length 8 has area 8² = 64 square units.
Triangle area
Triangle area is one-half × base × height.
Circle area
A circle with radius r has area πr².
Trapezoid area
A trapezoid uses the average of its two parallel bases multiplied by height.
Frequently asked questions
What shapes are included?
Rectangles, squares, triangles, circles, trapezoids, parallelograms, ellipses and circular sectors are supported.
How do I calculate rectangle area?
Multiply length by width.
How do I calculate triangle area?
Multiply base by perpendicular height and divide by 2.
What is the formula for circle area?
Circle area equals π × radius².
Can this convert square meters to square feet?
The calculator displays square-meter and square-foot equivalents of the calculated shape area.
Why are area units squared?
Area measures two dimensions, so multiplying one linear dimension by another produces a squared unit such as m² or ft².
Is area the same as perimeter?
No. Area measures the surface enclosed by a shape, while perimeter measures distance around its boundary.
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