# Area Calculator, A Free Tool For Calculation!

**Allcalculator.net **is a versatile online tool that provides a convenient way to calculate the area of a rectangle. Simply input the length and width of the rectangle into our user-friendly interface, and Allcalculator.net will swiftly provide you with the precise area measurement. Our **Area Calculator **takes the hassle out of manual calculations, allowing you to quickly obtain accurate results. With Allcalculator.net, calculating the area of a rectangle has never been easier.

## Is this area calculator used online?

To use an Area Calculator, you need to install tools before using them. This tool is required when offline tools are used. Also, this calculator wanted a system memory and various base applications to run successfully. An **Area**Calculator is an online calculator it runs without any installations. If you want an offline tool, you must install and download activities for the computer or tablet. You can use this online calculator to avoid unnecessary steps and get the result as quickly as possible. Area calculators can be used on multiple devices without any installations.

## What is the use of an area calculator, and how can it be used?

Some steps need to be followed to use the area calculator are as follows:

- Enter the function, lower and upper limit in the required input field
- Click on the calculate area button to get the result
- Finally, the area will be displayed in the output field.

You can also calculate the area on the website:

Select the shape in which you want to calculate the area from the menu

Enter the value of the required field like base, height, width, length, depth, radius etc.

Press the calculate button to calculate the area of the shape easily.

## What is the formula for triangle area?

To calculate the area of a triangle, different formulas depending on the laws and theorems are used. Some of the formulas are listed below:

Base and height

Triangle area = b x h/2

Two sides and the angle between them (SAS)

Triangle area = 0.5 x a x b x sin (γ)

Three sides (SSS)

Triangle area = 0.25 x √((a + b + c) x (-a + b + c) x (a – b + c) x ( a + b – c) )

Two angles and the side between them (ASA)

Triangle area = a2 x sin (β) x sin (γ) / (2 x sin (β+γ))

If the base and height are the two sides and in the form of a right angle, then the area of a right triangle may be:

Right triangle area = a x b / 2

## What do you mean by area in math?

- The area is the size of a surface, as a flat shape defines it. This area helps
**Calculate the Area**as the amount of paint necessary to cover the surface. To calculate the area, many useful formulas are used with the areas of simple shapes; as you know, the formula for rectangles, triangles and circles also with other shapes like kites, parallelograms, kites or annuli. You can calculate the area for sixteen geometric shapes like: - Square
- Rectangle
- Triangle
- Circle
- Circle sector
- Ellipse
- Trapezoid
- Parallelogram
- Rhombus
- Kite
- Pentagon
- Hexagon
- Octagon
- Annulus
- Quadrilateral
- Regular polygon