7 Free Online Area Calculator Websites

Here is a list of 7 free online area calculator websites. Area expresses the extent of the two-dimensional region. There are direct mathematical formulas to calculate the area of different shapes. If you are too lazy to first look at a formula and then use it to calculate the area then you can just use these websites to do so. It is easy and quick.

These websites are absolutely free to use and can easily calculate the area of various types of shapes include circles, triangles, rectangles, trapezoid, annulus, ellipse, and more. Each website can work with multiple measuring units. All you have to do is pick the shape, enter your data and get the area right away. You can pick a measuring unit as per your locale to avoid any confusion or post-conversion. You can check out the article and then pick a website that you like the most.

My Favorite Online Area Calculator Website

CalculatorSoup is my favorite online area calculator website on this list. This calculator can find the area of various types of shapes including Rectangle, Rectangle border, Triangle, Trapezoid, Circle, Circle border, Annulus, and Ellipse. It supports many measurement units so you can pick a local unit to convenience. On top of that, this calculator can also find the cost of the area based on the price per square unit. Finally, it shows the breakdown of the calculation that can come in handy.

You can also check out our lists of the best free Online Line Intersection Calculator Websites, Online Hash Calculator Websites, and Online Electricity Cost Calculator Websites.

CalculatorSoup

CalculatorSoup is a free online area calculator website. It offers various calculators for math, finance, time, unit, physics, chemistry, conversion, health, etc. With its Square Footage Calculator, you can easily calculate the area. It works with Rectangle, Rectangle Border, Triangle, Trapezoid, Circle, Circle Border, Annulus, and Ellipse shapes. You can select the shape and then enter the dimension measurements in the calculator to find the area. Along with the area, this calculator can also find the cost. You can enter the price per square foot and know the total cost.

Highlights:

• Calculate the area of Rectangle, Rectangle Border, Triangle, Trapezoid, Circle, Circle Border, Annulus, and Ellipse shapes.
• Change the unit to feet, yard, inch, meter, mile, kilometer, or centimeter.
• You can also the price per square unit to calculate the overall cost f the area.
• Breakdown of the area calculation and price calculation.

Online MSchool

Online MSchool is a free website with a huge collection of online calculators and converters. It has separate area calculators for different geometrical figures. It covers Rectangle, Triangle, Trapezoid, Rhombus, circle, Sector, Ellipse, and Parallelogram shapes. Depending on the shape, there are multiple variations for different types of scenarios with the shape. You can pick a scenario with the data that you know about your shape. Then you can just enter the data and find the area.

Highlights:

• Calculate the area of Rectangle, Triangle, Trapezoid, Rhombus, Circle, Sector, Ellipse, and Parallelogram shapes.
• Change the unit to feet, yard, inch, meter, mile, kilometer, or centimeter.
• Know the theory and understand how the area is calculated for a specific shape along with the formula.
• Find related calculators for surface area and volume.

Keisan Online Calculator

Keisan Online Calculator is a free website by Casio, one of the popular calculator manufacturers around the world. This website offers dozens of calculators covering finance, health, environment, mathematics, science, and other advanced calculators. It has online area calculators. There is a separate calculator for different shapes. Depending on the shape, you can pick a calculator and enter the input data to calculate the area. After the calculator, it shows a detailed breakdown of the calculation.

Highlights:

• Calculate the area of Rectangle, Triangle, Trapezoid, Circle, Sector, Ellipse, and Parallelogram shapes.
• Calculate the perimeter length.
• Change the unit to feet, yard, inch, meter, mile, kilometer, or centimeter.
• Find related calculators for other shapes, surface area, and volume.
• Understand how the area is calculated for a specific shape with the formula.

Calculator.net

Calculator.net is home to over a hundred online calculators. There are calculators for various needs including Finance, Fitness & Health, Math, Age, Date, Time, GPA, Area, and many more. It offers area calculators that can evaluate the area of seven common shapes. The shape includes Rectangle, Triangle, Trapezoid, Circle, Sector, Ellipse, and Parallelogram. For each calculator, you can pick the unit of your choice and then enter the dimensions measurement s to calculate the area.

Highlights:

• Calculate the area of Rectangle, Triangle, Trapezoid, Circle, Sector, Ellipse, and Parallelogram shapes.
• Change the unit to feet, yard, inch, meter, mile, kilometer, or centimeter.
• Find related calculators for surface area and volume.
• Know and understand how the area is calculated for a specific shape with the formula.

GIGA Calculator

GIGA Calculator is another free online area calculator website. This website offers free business calculators, financial calculators, date & time calculators, health calculators, transportation calculators, construction calculators, math calculators, physics calculators, and many more. The online area calculator on this website works with Circle, Triangle, Reactanel, Trapezoid, Octagon, Ellipse, Section, and Parallelogram shapes. You can just pick the same and the unit system you want to use. Then enter the dimension of the shape and get the area instantly.

Highlights:

• Calculate the area of Rectangle, Triangle, Trapezoid, Octagon, Circle, Sector, Ellipse, and Parallelogram shapes.
• Change the unit to feet, yard, inch, meter, mile, kilometer, decimeter, or centimeter.
• Search and find related calculators for surface area and volume.

Online Conversion

Online Conversion is a conversion website where you can convert various types of things. It can calculate and convert area, angle, astronomical, clothing, cooking, density, energy, finance, force, frequency, number, speed, pressure, volume, weight, viscosity, and more. It has a very simple area calculator that works for rectangular shapes only. To calculate the area, you have to enter the length and width of the shape. When you do that, it shows you the area of the shape.

Highlights:

• Calculate the area of anything rectangular in shape.
• Change the unit to feet or metric.
• Simple and quick to use.
• Convert Acceleration, Angle, Area, Astronomical, Clothing, Cooking, Date/Time, Density, Energy, Finance, etc.

Easy-Calc

Easy-Calc is yet another free website with a big collection of online calculators. It has over a hundred calculators under Financial, Math, Metal, Structural, and Others categories. Under the Math category, there is a dedicated section for the area calculator. There you can pick a calculator as per the shape. It can calculate the area of Rectangle, Triangle, Trapezoid, Circle, Sector, Ellipse, and Parallelogram shapes. You can simply go with the shape of your choice and enter the data. You can also change the unit as per your preference. Then, just click the “Calculate Area” button to know the area.

Highlights:

• Calculate the area of Rectangle, Triangle, Trapezoid, Circle, Sector, Ellipse, and Parallelogram shapes.
• Change the unit to feet, yard, inch, meter, mile, or centimeter.
• Get a detailed breakdown of the calculation with formula and steps.
• Find related calculators for surface area and volume.