Area of a sector calculator

Solving complex mathematical problems is a challenging task, especially when it comes to calculating the area of a sector. To simplify this process, we have designed an effective and user-friendly tool that allows you to calculate the area of a sector in no time. This online calculator is intended to assist students, teachers, mathematicians, engineers, and anyone who needs to determine the area of a sector accurately. With just a few clicks, you can enter the necessary values, and our calculator will provide you with the precise area of the sector. Our calculator considers all the essential parameters required for calculating the area of the sector, such as angle and radius. Furthermore, the tool is designed to provide you with optimal accuracy and flexibility, making it one of the best calculators available in the market. Whether you are a student or a professional, our sector area calculator is an essential tool for solving mathematical problems with ease and precision.

Area of a Sector Calculator

Calculate the area of a sector of a circle using radius and angle measurement.

Area of a Sector Calculator Results
Angle (in degrees)0

To calculate the 'area of a sector' within a circle, you'll need to know the central angle and the radius of the circle. If you're also interested in finding the circumference, diameter, or area of the entire circle, you can use our Circle Calculator. It's a handy tool to have alongside our 'Area of a Sector Calculator' for comprehensive circle-related calculations.

How to Use the "Area of a Sector Calculator"

The "Area of a Sector Calculator" is a useful tool that enables you to calculate the area of a sector of a circle based on the radius and angle measurement. It provides a convenient way to determine the specific region's area within a circle when you have the necessary measurements.

Instructions for Utilizing the Calculator

To make use of the "Area of a Sector Calculator," follow these steps:

  1. Radius: Enter the radius of the circle in the provided input field. The radius represents the distance from the center of the circle to any point on its circumference. This field requires a numerical value greater than zero.
  2. Angle (in degrees): Specify the angle measurement of the sector in degrees. This angle refers to the portion of the circle enclosed by the sector. Enter a numerical value in degrees.
  3. Area: The calculated area of the sector will be automatically displayed in this input field. The area represents the region's size within the circle. It is presented in square centimeters (cm²) and is read-only.
  4. Units: Select the appropriate unit of measurement from the dropdown list. You can choose between centimeters (cm), meters (m), or feet (ft) to specify the units for the radius and the area.

Once you have provided the necessary inputs, click the "Calculate Area" button to obtain the results.

Area of a Sector Calculator Formula

The formula used by the "Area of a Sector Calculator" can be expressed as:

Area = (π * (Radius^2) * Angle) / 360

In this formula, π represents the mathematical constant pi (approximately 3.14159). The formula calculates the area of the sector based on the radius and the angle measurement provided. It takes into account the proportion of the circle represented by the sector.

Illustrative Example

Let's consider an example to illustrate the functionality of the "Area of a Sector Calculator":

Suppose you have a circle with a radius of 10 centimeters, and you want to calculate the area of a sector with an angle of 60 degrees. To determine the area, follow these steps:

  1. Radius: 10 cm
  2. Angle: 60 degrees

By entering these values into the calculator and clicking the "Calculate Area" button, you will obtain the area of the sector.

Illustrative Table Example

Here's an example table showcasing various input values and the corresponding results without further explanation:

Radius (cm)

Angle (degrees)

Area (cm²)


Please note that these values are for illustrative purposes only and may not reflect real-world scenarios.

The "Area of a Sector Calculator" provides a convenient way to calculate the area of a sector within a circle based on the radius and angle measurement. By accurately inputting the values and utilizing the provided formula, you can easily obtain the area of the specific region of interest. This calculator is a valuable tool for various applications, such as geometry, architecture, and engineering, where calculating sector areas is essential. Utilize the "Area of a Sector Calculator" to streamline your calculations and accurately determine sector areas with ease.

About the Author

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Aariz Ahmed

Aariz Ahmed is a Physiologist with a passion for understanding how the human body functions. With a strong background in biology and a focus on human physiology, he is dedicated to promoting health and wellness through scientific research. Aariz has a keen interest in exploring the intersection of health and technology, and how data can be used to improve our understanding of the human body. His expertise in physiology has contributed to the development of numerous health and wellness programs, and he is a recognized expert in his field.