Square Perimeter Calculator
Calculate square perimeter from side, diagonal, area, known perimeter, inradius, or circumradius, with side, diagonal, and area shown for checking.
Square perimeter from the value you know
English competitors usually let users solve square perimeter from a side, diagonal, area, or radius. This tool keeps those modes and returns the recovered side so the result can be checked.
| Known value | What the calculator finds first | Final output |
|---|---|---|
| Side | Side is already known | Perimeter, diagonal, area |
| Diagonal | Side from diagonal | Perimeter |
| Area | Side from area | Perimeter |
| Perimeter | Side from known perimeter | Side, diagonal, area |
Square formulas
P is perimeter; a is side length.
a is side length; d is diagonal.
a is side length; A is area.
Frequently Asked Questions
Sources and References
Calculations are based on the listed reference sources. Links open in a new tab.
Related Tools
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