📏 Area Calculator for Shapes
Calculate the area of rectangles, circles, triangles, trapezoids, parallelograms, and ellipses.
Area Calculator for Shapes
This tool calculates the area of six common geometric shapes. Simply select a shape from the dropdown, enter the required dimensions, and get the area instantly along with the formula used. It is perfect for homework, construction planning, landscaping, and any situation where you need to quickly compute the area of a shape.
Frequently Asked Questions
What is the area formula for each shape?
Rectangle: length × width. Circle: π × r². Triangle: ½ × base × height. Trapezoid: ½ × (a + b) × height. Parallelogram: base × height. Ellipse: π × a × b (where a and b are semi-axes).
Do the units matter?
The area result uses the square of whatever unit you input. If you enter dimensions in meters, the area will be in square meters (m²). If you use feet, the area will be in square feet (ft²). Always be consistent with your units.
Can I calculate the area of irregular shapes?
This calculator handles standard geometric shapes. For irregular shapes, you can break them down into standard shapes, calculate each area separately, and add them together. Alternatively, use the shoelace formula for polygons with known vertices.