Area Calculator

Calculate the area of various geometric shapes including squares, rectangles, triangles, and circles. Enter the required measurements and get instant results with formulas.

Square Area

side (s) s
Formula: A = s²

Examples

Example 1: Square

Given: Side = 5 cm

Solution:

A = s² = 5² = 25 cm²

Example 2: Rectangle

Given: Length = 8 m, Width = 3 m

Solution:

A = l × w = 8 × 3 = 24 m²

Example 3: Triangle

Given: Base = 10 cm, Height = 6 cm

Solution:

A = ½ × b × h = ½ × 10 × 6 = 30 cm²

Example 4: Circle

Given: Radius = 4 in

Solution:

A = πr² = π × 4² = 16π ≈ 50.27 in²

Example 5: Real World

Given: Garden bed 12 ft × 8 ft

Solution:

A = 12 × 8 = 96 ft² (for landscaping)

About Area Calculations

What is Area?

Area is the amount of space inside a two-dimensional shape. It is measured in square units such as square meters (m²), square centimeters (cm²), or square feet (ft²).

Area Formulas Summary

Shape Formula Variables
Square A = s² s = side length
Rectangle A = l × w l = length, w = width
Triangle A = ½ × b × h b = base, h = height
Circle A = πr² r = radius

Practical Applications

  • Calculating floor space for flooring materials
  • Determining paint coverage for walls
  • Planning garden layouts and landscaping
  • Real estate and property measurements
  • Construction and architecture