📐 Area Calculator

Calculate the area of geometric shapes including squares, rectangles, circles, triangles, and more.

Square Area

Area = side²

Rectangle Area

Area = length × width

Circle Area

Area = π × radius²

Triangle Area

Area = ½ × base × height

Trapezoid Area

Area = ½ × (a + b) × height

Parallelogram Area

Area = base × height

Area Calculator Features

📐 Multiple Shapes

Calculate areas for squares, rectangles, circles, triangles, trapezoids, and parallelograms with visual diagrams.

📏 Unit Flexibility

Work with meters, centimeters, feet, or inches. Get results in the same unit with automatic conversions available.

🧮 Step-by-Step

See the formula used and step-by-step calculation process for each shape to understand the math behind area calculations.

Area Calculator FAQ

What is the formula for calculating area?
The formula depends on the shape: Square = side², Rectangle = length × width, Circle = π × radius², Triangle = ½ × base × height.
What units can I use for area calculations?
You can input measurements in meters, centimeters, feet, or inches. The area will be calculated in square units (m², cm², ft², in²).
How do I convert between area units?
To convert area units, remember that 1 m² = 10,000 cm², 1 ft² = 144 in², 1 m² ≈ 10.764 ft². Use our unit converter for precise conversions.
What's the difference between perimeter and area?
Perimeter is the distance around the outside of a shape (measured in linear units), while area is the space inside a shape (measured in square units).

When to Use This Calculator

Use this when you need to calculate the floor space of a room for flooring, paint, or tile purchases, or when measuring land for landscaping or construction projects. It works for circles, rectangles, triangles, and more.

Common Mistakes to Avoid