Math tools
Area Calculator
Use Area Calculator online for free. Adjust the available options and process your data locally in your browser, with no installation or sign-up.
Your data is processed only in your browser
Features and usage
Enter your content or choose the options above, then review the result. Tool calculations run locally in your browser.
Available options
- Shape (Rectangle, Circle, Triangle, Rectangular prism, Sphere, Cylinder, Cone)
- Length / radius / side A
- Width / height / side B
- Height / side C
Scope and limitations
Use one consistent length unit. Areas use squared units and volumes use cubed units. For a triangle, enter all three sides.