Hive Calculator Calculator

Area of Circle Calculator

The Area of Circle Calculator is a fast and easy-to-use tool that helps you find the area of a circle using its radius, diameter, or circumference. Whether you're solving geometry problems, planning a circular garden, or estimating materials, this calculator provides accurate results in seconds.

🔵 What Is the Area of a Circle?

The area of a circle is the amount of space enclosed within its boundary. It is measured in square units (like square meters, square inches, etc.) and depends entirely on the size of the circle's radius or diameter.

📐 Area of a Circle Formula

Area = π × r2

Where π (Pi) is approximately 3.1416 and r is the radius of the circle.

✍️ Example Calculation:

If the radius of a circle is 7 cm:

Area = π × 72 = 3.1416 × 49 ≈ 153.94 cm2
Circumference = 2 × π × 7 = 2 × 3.1416 × 7 ≈ 43.98 cm
✅ The area of the circle is approximately 153.94 square centimeters

🔧 Features of the Area of Circle Calculator:

  • Accepts input via radius, diameter, or circumference
  • Works with all units: cm, m, ft, in, etc.
  • Responsive and mobile-friendly design
  • 100% free and no login required
  • Instant results for fast and accurate calculations

📚 Common Use Cases:

Education – Geometry and school assignments
Landscaping – Land or garden planning
Engineering – Pipe or circular material estimations
Design – Interior and architectural design
Manufacturing – Machining and production tasks

💡 Why Use This Area of Circle Calculator?

  • Avoids manual calculation errors
  • Saves time and simplifies planning
  • Ideal for students, teachers, engineers, and DIYers
  • Works from any device, anywhere, anytime

Easily compute the area of any circle with our Area of Circle Calculator – the perfect tool for quick, precise, and stress-free calculations.