Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Geometry
Regular Polygon Calculator
Instantly calculate interior angles, exterior angles, area, and perimeter of any regular polygon. Perfect for geometry students, architects, and tile pattern designers.
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 (°/rad/units²/units) | Result (units) |
| What it does | Instantly calculate interior angles, exterior angles, area, and perimeter of any regular polygon. Perfect for geometry students, architects, and tile pattern designers. | Convert any known circle measurement — radius, diameter, circumference, or area — into any other. Perfect for engineering, design, or math problems involving circular shapes. |