Math Calculators
Area Calculator
Calculate areas of common 2D shapes with formulas.
What is the Area Calculator & How does it work?
This Area Calculator helps you find the area of various 2D shapes including circles, rectangles, triangles, trapezoids, parallelograms, and ellipses. Each shape has a specific formula based on its dimensions.For example, the area of a circle is calculated using the formula A = ΟrΒ², where A is the area and r is the radius. Similarly, the area of a rectangle is found by multiplying its length (l) by its width (w), represented as A = lw.
A = pi r^2
r = radius
Parameters
Area
β
Frequently Asked Questions
How do I calculate the area of a circle?
To find the area of a circle, use the formula A = ΟrΒ², where r is the radius.
What's the formula for the area of a rectangle?
The area of a rectangle is calculated by multiplying its length (l) by its width (w), so A = lw.
Can you explain how to calculate the area of a triangle?
The area of a triangle is found using the formula A = Β½bh, where b is the base and h is the height.
How do I find the area of a trapezoid?
To calculate the area of a trapezoid, use the formula A = Β½(a + b)h, where a and b are the lengths of the parallel sides and h is the height.
What's the formula for the area of a parallelogram?
The area of a parallelogram is calculated by multiplying its base (b) by its height (h), so A = bh.
How do I calculate the area of an ellipse?
To find the area of an ellipse, use the formula A = Οab, where a and b are the lengths of the semi-major and semi-minor axes.
Can this calculator help me with irregular shapes?
This calculator is designed for regular 2D shapes like circles, rectangles, triangles, trapezoids, parallelograms, and ellipses. For irregular shapes, you may need to break them down into simpler shapes or use other methods.
Results are for informational purposes only and do not constitute professional advice.