Area Calculator
Calculate area and perimeter for various geometric shapes
Shape Calculator
Results
Enter dimensions to calculate area and perimeter
Area Formulas Reference
Rectangle
Area = length × width
Perimeter = 2(l + w)
Square
Area = side²
Perimeter = 4 × side
Circle
Area = π × radius²
Circumference = 2πr
Triangle
Area = ½ × base × height
Or use Heron's formula
Parallelogram
Area = base × height
Perimeter = 2(a + b)
Trapezoid
Area = ½(a + b) × h
a, b = parallel sides
Common Area Measurements in India
Real Estate Units
- • 1 Square Foot = 0.0929 m²
- • 1 Square Yard = 0.836 m²
- • 1 Acre = 43,560 sq ft = 4,047 m²
- • 1 Hectare = 10,000 m² = 2.47 acres
- • 1 Bigha ≈ 2,500-6,771 m² (varies by state)
Agricultural Land
- • 1 Guntha = 1,089 sq ft (Maharashtra)
- • 1 Ground = 2,400 sq ft (South India)
- • 1 Cent = 435.6 sq ft (Kerala, Tamil Nadu)
- • 1 Katha varies by state (500-3,000 sq ft)