What you provide
What you provide
- Square side length: Length shared by all four equal sides.
- Input context: keep the entered value and every interpreted output in one consistent numeric or measurement system.
GEOMETRY / EQUAL SIDES
Square Calculator
Calculate square area, perimeter, and diagonal from one positive side length with each formula shown clearly.
- 01 Calculated in this tab
- 02 Values stay in this browser tab
- 03 Use boundary
Use boundary
Calculation path
The side is squared for area, multiplied by four for perimeter, and multiplied by square root of two for diagonal.
Calculation path
Area = side^2; perimeter = 4 x side; diagonal = side x sqrt(2).
What you receive
What you receive
- Square area
- Perimeter
- Diagonal and side recap
Use boundary
Choose the maximum decimal places shown. This does not increase source accuracy.
The result assumes four equal sides and four right angles; use the rectangle tool for unequal adjacent sides.
Results are educational math aids. Check notation, units, rounding, assumptions, and required precision before using an answer in graded, engineering, financial, or safety-critical work.