Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Geometry
Regular Polygon Calculator
Compute the area, perimeter, and interior angles of any regular polygon from the number of sides and one known measurement such as side length, circumradius, or apothem. Great for architecture, tiling, and geometry.
Fill in the required fields to see your result.
Geometry
Circle Geometry Calculator
Convert any known circle measurement — radius, diameter, circumference, or area — into any other. Perfect for engineering, design, or math problems involving circular shapes.
Fill in the required fields to see your result.
Key differences
| Regular Polygon Calculator | Circle Geometry Calculator | |
|---|---|---|
| Category | Geometry | Geometry |
| Inputs required | 4 | 3 |
| Result | Result (units) | Result (units) |
| What it does | Compute the area, perimeter, and interior angles of any regular polygon from the number of sides and one known measurement such as side length, circumradius, or apothem. Great for architecture, tiling, and geometry. | Convert any known circle measurement — radius, diameter, circumference, or area — into any other. Perfect for engineering, design, or math problems involving circular shapes. |