Calcolatore Area Rettangolo

Last updated: 2026-08-24

Calcolatore Area Rettangolo — Calcola area, perimetro e diagonale di un rettangolo.
Inputs
Result
Enter values and press Calculate

How to use it

  1. {'step': 1, 'description': 'Calculate area: 8.75 × 4.25 = 37.1875 m²'}
  2. {'step': 2, 'description': 'Calculate perimeter: 2 × (8.75 + 4.25) = 26 m'}
  3. {'step': 3, 'description': 'Calculate diagonal: √(8.75² + 4.25²) = √94.8125 = 9.7372 m'}
  4. {'step': 4, 'description': 'Results: 37.19 m² area, 26 m perimeter, 9.74 m diagonal'}

Common mistakes

  • ⚠️ Mixing different units (e.g., meters and centimeters) without conversion
  • ⚠️ Using diagonal formula incorrectly by not squaring both sides first
  • ⚠️ Forgetting to add waste fattore when ordering materials based on area

Worked example

Calculate area and perimeter of a rectangular room measuring 8.75m by 4.25m for flooring estimation

The area_m² ({area_m2}) is the totale surface for materials like flooring; perimetro ({perimetro_m}) helps estimate baseboards; diagonal ({diagonal_m}) verifies square corners.

Input guide

FieldTypical range
anchoTepicalle 0.5-50m for most construction applications
largoRooms: 2-20m; Land plots: 10-500m; Construction: 0.5-100m