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Square Calculator

Square Calculator

Calculate perimeter, area, and diagonal from side length. Explore scaling effects to understand how changes in size affect different properties. Perfect for tiles, frames, and design work.

Square Calculator

Calculate perimeter, area, diagonal, and scaling effects

Real-World Applications

Chess Board Square

Each square on a chess board has equal sides

Side: 4cm → Perimeter: 16cm, Area: 16cm²

Floor Tiles

Square tiles for seamless floor coverage

30cm × 30cm tile → Area: 900cm² per tile

Picture Frame

Square picture frames with equal sides

20cm side → Need 80cm of frame material

Square Properties & Scaling Laws

✅ Key Properties:

  • • All four sides are equal length
  • • All four angles are 90°
  • • Diagonals are equal, perpendicular, and bisect
  • • Has 4 lines of symmetry
  • • Perimeter = 4 × side, Area = side²

📏 Scaling Laws:

  • • When side increases by factor n:
  • • Perimeter increases by factor n
  • • Area increases by factor n²
  • • Example: 3× side → 3× perimeter, 9× area
  • • This is why area "grows faster" than perimeter

Calculator Features

Basic Calculations

Calculate all square properties from just the side length

P = 4a, A = a², d = a√2

Reverse Calculations

Find side length from known perimeter or area

a = P÷4, a = √A

Scaling Analysis

Explore how perimeter and area change with size scaling

P scales by n, A scales by n²

How to Use the Square Calculator

Basic Calculation (Side → All Properties)

  1. 1Select "Basic" calculation mode
  2. 2Enter the side length value
  3. 3Choose your unit of measurement
  4. 4Get perimeter, area, and diagonal instantly

Scaling Analysis

Understanding Scale Effects

When a square's side length is scaled by factor n, the perimeter scales by n, but the area scales by n². This explains why larger squares have disproportionately more area.

Practical Example

A 2×2 square becomes 6×6 when scaled by 3. The perimeter goes from 8 to 24 (3× increase), but the area goes from 4 to 36 (9× increase).

Square Scaling Laws

Linear Properties

Side length, perimeter, and diagonal scale linearly

Scale factor: n
New value = n × old value

Area Properties

Area scales with the square of the scale factor

Scale factor: n
New area = n² × old area

Practical Impact

Why larger squares are more efficient for coverage

Double the side:
4× the area coverage