Parallelogram Calculator
Select a calculation and enter known values. Inputs change automatically and your entries are
preserved when switching modes.
Variable Reference:
| a | side length a |
| b | side length b |
| A, C | corner angles A = C |
| B, D | corner angles B = D |
| p | diagonal length p |
| q | diagonal length q |
| h | height |
| P | perimeter |
| K | area |