7 Best Free Online Centroid Calculator Websites

Here is a list of best free online centroid calculator websites. The centroid is the geometric center of an object. It is also known as a point where all the lines originated from the vertices of a shape meet. Knowing the Centroid of a two-dimensional shape is quite significant as it enables users to calculate area and moment of inertia values. Similarly, the Centroid helps calculate the the center of balance and various mechanics problems for 3D objects. If you want to calculate the centroid of a two-dimensional shape, check out these online centroid calculator websites.

I have tested over 20 online calculators and tools and developed these 7 best free Centroid calculator websites. These websites allow users to calculate the centroid of shapes like Triangles, Rectangles, Squares, and Hexagons. Some tools let users specify custom shapes by providing the coordinates of their vertices. Based on the coordinates of a given shape, these calculators calculate and give the coordinates of their Centroids. The calculation process and formulas to find out the centroid are also provided by these calculators. To help novice users, I have included the necessary calculation steps in the description of each website. Go through the list to learn more about these websites.

My Favorite Online Centroid Calculator Website:

omnicalculator.com is my favorite website as it can calculate the centroid of various shapes. Plus, it shows the calculation formula and describes the centroid to users.

You can also check out lists of best free Online Pivot Point Calculator, Online HHI Calculator, and Online Reynolds Number Calculator websites.

Comparison Table:

Features/Website Names	Can cauculate centroid of custom shapes	Shows calculation formula	Describes Centroid
omnicalculator.com	✓	✓	✓
byjus.com	x (only supports triangle shape)	✓	✓
mathopenref.com	x (only supports triangle shape)	✓	x
ezcalc.me	✓	✓	x
calculator.academy	x (only supports triangle shape)	✓	✓
calculator-online.net	✓	✓	✓
easycalculation.com	x (only supports rectangle shape)	✓	x

omnicalculator.com

omnicalculator.com is a free online centroid calculator website. With the help of this website, I can find the centroid or center of mass of various 2D shapes like Triangle Polygon, etc. I can also specify a custom shape using the N-sided polygon option and find its centroid. It also shows the formula to calculate the centroid of various shapes and polygons.

To calculate a centroid, it needs coordinates of a 2D shape. After the calculation, it shows the coordinates of the calculated Centroid point. It also explains how Centroid helps new users. Now, follow the below steps.

How to calculate centroid online using omnicalculator.com:

Start this website and access the Centroid Calculator.
After that, choose a shape or n-polygon.
Next, specify the point coordinates of a selected shape.
Finally, view the coordinates of the centroid.

Additional Features:

This website offers multiple math calculators like 3D Geometry, Angle, Circle, Trigonometry, Linear Algebra, and more.

Final Thoughts:

It is one of the best free online centroid calculator websites that can calculate the centroid of various 2D shapes and show the calculation formulas.

Pros	Cons
Explains Centroid
Shows calculation formula
Lets users specify custom shapes

Home Page

byjus.com

byjus.com is another free online centroid calculator website. This website offers a simple centroid calculator that helps me find out the centroid of a triangle. To perform the calculation, it needs all three coordinates ((x1, y1), (x2, y2), (x3, y3)) of a triangle. It also shows the centroid calculation formula. I also like its how-to section that provides the calculation steps. Plus, it describes the centroid in detail. Now, follow the below steps.

How to calculate centroid online using byjus.com:

Start this website and access the centroid calculator.
After that, enter three side coordinates of a triangle.
Next, tap on the Calculate button.
Finally, view the Centroid (x) and centroid (y) values.

Additional Features:

This website offers multiple calculators like Product Rule, Diagonal Matrix, Circle Graphing, Adding Money, and more.

Final Thoughts:

It is another good online centroid calculator website that helps users calculate the centroid of a triangle.

Pros	Cons
Calculates the centroid of a triangle
Shows calculation formula
Describes centroid

Home Page

mathopenref.com

mathopenref.com is another free online Centroid calculator website. This website provides an interactive X, Y-axis graph that allows users to specify the coordinates of a triangle by interacting with the triangle’s vertices. Based on the specified coordinates of triangle vertices, users get centroid coordinates in real time. It also highlights the triangle centroid calculation formula. Besides this, a traditional centroid calculator is also available that accepts the coordinates of a triangle and shows its centroid coordinates. It also shows the steps to calculate the centroid using the tool. Now, follow the below steps.

How to calculate centroid online using mathopenref.com:

Start this website and go to the Centroid of Triangle section.
Now, use the interactive graph to specify the triangle vertices coordinates or manually enter vertices coordinates.
Next, tap on the Calculate button to view the coordinates of the centroid.

Additional Features:

This website explains multiple coordinate geometry topics such as The Coordinate Plane, The Origin of the Plane, Axis Definition, Midpoint Theorem, etc.

Final Thoughts:

It is another good online Centroid calculator website that helps users calculate the centroid of a triangle interactively.

Pros	Cons
Calculates the centroid of a triangle
Shows calculation formula
Provides an interactive centroid calculator

Home Page

ezcalc.me

ezcalc.me is another free online centroid calculator website. With the help of this website, I can calculate the centroid of Triangles, N-sided Polygons, and N points. N Points and N-side polygons options allow users to specify custom coordinates of vertices to represent any shape over a 2d plane. A standard centroid calculation formula is also shown by it. Now, follow the below steps.

How to calculate centroid online using ezcalc.me:

Start this website and access the centroid calculator.
After that, choose a shape from the Shape option.
Now, enter the X and Y coordinate values of each vertices.
Finally, tap on the Calculate button to view centroid coordinates.

Additional Features:

This website has multiple online calculators like Algebra, Chemistry, Financial, Geometry, Health, etc.

Final Thoughts:

It is another simple-to-use online centroid calculator website that can calculate the centroid of all types of shapes.

Pros	Cons
Calculates centroid of various shapes
Shows calculation formula

Home Page

calculator.academy

calculator.academy is another free online centroid calculator website. This website helps users find out the centroid coordinates of a 2D triangle. As input, it needs coordinates of all three vertices of a triangular shape. It also describes the centroid and shows the centroid calculation formula. A good set of centroid examples are also provided by it. Now, follow the below steps.

How to calculate centroid coordinates online using calculator.academy:

Visit this website and go to the Centroid Calculator section.
Now, enter the coordinates of all three vertices.
Next, tap on the Calculate button.
Finally, view the calculated Centroid X and Y coordinates.

Additional Features:

This website has calculators associated with Finance, Maths, Science and Engineering, and Health.

Final Thoughts:

It is another good online centroid calculator website that anyone can use to find a centroid of a triangular shape.

Pros	Cons
Calculates the centroid of triangles
Shows calculation formula

Home Page

calculator-online.net

calculator-online.net is another free online centroid calculator website. This website enables users to calculate the centroid coordinates of any 2D shape, including, triangular, square, hexagon, etc. It also describes the centroid and highlights the general centroid formula. It also provides steps to calculate the centroid with multiple examples. It also answers common queries related to centroid calculation. Now, follow the below steps.

How to calculate centroid online using calculator-online.net:

Visit this website and access the centroid calculator.
After that, choose a shape from the Shape menu.
Now, enter the coordinates of vertices.
Finally, click on the Calculate button to view the coordinates of the centroid.

Additional Features:

This website offers multiple online tools like Trigonometry Calculator, Orthocenter Calculator, Triangle Calculator, and more.

Final Thoughts:

It is another capable online centroid calculator website that anyone can use without much hassle.

Pros	Cons
Calculates centroid of various shapes
Shows calculation formula
Describes centroid
Shows calculation steps

Home Page

easycalculation.com

easycalculation.com is yet another free online centroid calculator website. This website offers one of the simplest centroid calculators as it can only calculate the centroid coordinates of a rectangular shape. Unlike similar calculators, it only uses length and width values to determine the centroid coordinate. To help out users, it provides a centroid calculation formula and a couple of examples. Now, follow the below steps.

How to calculate centroid online using easycalculation.com:

Visit this website using the given link.
Next, enter the Length and Width values.
Now, tap on the Calculate button.
Finally, view the centroid coordinates.

Additional Features:

This website offers multiple online tools like Mid Point Calculator, Ratio Calculator, Perpendicular Axis Theorem Calculator, etc.

Final Thoughts:

It is another simple online centroid calculator website that offers all the tools to calculate the centroid of a rectangle.

Pros	Cons
Shows calculation formula	Only calculates the centroid of a rectangle

Home Page

Frequently Asked Questions

What is centroid of a triangle?

The centroid of a triangle is the point where the three medians of the triangle intersect. A median is a line segment that connects a vertex of a triangle to the midpoint of the opposite side. The centroid is often denoted by the letter G.

What is called centroid?

The centroid is the geometric center of an object. It is also known as a point where all the lines originated from the vertices of a shape meet.

Is Orthocentre and centroid same?

No, the orthocenter and centroid are not the same in geometry. They are distinct points associated with a triangle.

What is the rule of the centroid?

The rule of the centroid in a triangle involves the relationship between the centroid and the medians of the triangle. The centroid is the point where the three medians intersect, and an interesting property is that the centroid divides each median into two segments in a specific ratio. The segment closer to the midpoint of the opposite side is twice as long as the segment closer to the vertex.

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