Quick geometry calculators
Circle
Radius ↔ diameter, circumference and area.
| Circumference | 314.159 mm |
|---|---|
| Area | 7853.982 mm² |
Right triangle
Enter any two of the three sides to solve the rest.
| Angle opposite A | 36.87° |
|---|---|
| Angle opposite B | 53.13° |
Bolt circle coordinates
Evenly-spaced hole coordinates around a bolt circle (PCD) - useful for laying out circular hole patterns.
| # | ° | X | Y |
|---|---|---|---|
| 1 | 0° | 100.00 | 0.00 |
| 2 | 90° | 0.00 | 100.00 |
| 3 | 180° | -100.00 | 0.00 |
| 4 | 270° | 0.00 | -100.00 |
Results update instantly as you change any value.