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Area Calculator | Calculate Shapes Area Online - Calculator-App.site

Area Calculator

Calculate the area of various geometric shapes

Length (l):

Width (w):

Formula:

Area = Length × Width

A = l × w

Base (b):

Height (h):

Formula:

Area = ½ × Base × Height

A = ½ × b × h

Radius (r):

Formula:

Area = π × Radius²

A = π × r²

Base 1 (a):

Base 2 (b):

Height (h):

Formula:

Area = ½ × (Base1 + Base2) × Height

A = ½ × (a + b) × h

Semi-major axis (a):

Semi-minor axis (b):

Formula:

Area = π × Semi-major axis × Semi-minor axis

A = π × a × b

Radius (r):

Angle (θ):

Formula:

Area = (θ/360) × π × Radius²

A = (θ/360) × π × r²

Base (b):

Height (h):

Formula:

Area = Base × Height

A = b × h

Area: 0

Shape: Rectangle

Calculation: -

How to use this calculator:

Select the shape you want to calculate from the options above
Enter the required dimensions for the selected shape
Click "Calculate Area" to get the result
Use "Reset" to clear all inputs

All measurements should be in the same units. The calculator supports decimal numbers for precise calculations.

Area Calculator – Calculate Square Footage, Acres, and More

Instantly compute the area of squares, rectangles, circles, triangles, and other shapes with our free Area Calculator! Perfect for construction, landscaping, flooring estimates, and DIY projects.

📐 Calculation Formulas Used:

Common Shapes & Formulas:

Square/Rectangle:
Area = Length × Width
*(Example: 10 ft × 5 ft = 50 sq ft)*
Circle:
Area = π × Radius² (π ≈ 3.1416)
*(Example: Radius = 3 ft → 3.1416 × 9 ≈ 28.27 sq ft)*
Triangle:
Area = ½ × Base × Height
*(Example: Base = 8 ft, Height = 6 ft → ½ × 8 × 6 = 24 sq ft)*
Trapezoid:
Area = ½ × (Base₁ + Base₂) × Height
*(Example: Bases = 5 ft & 7 ft, Height = 4 ft → ½ × 12 × 4 = 24 sq ft)*

Unit Conversions:

Square Feet ↔ Square Meters:
1 sq ft ≈ 0.0929 sq m
1 sq m ≈ 10.764 sq ft
Acres ↔ Square Feet:
1 acre = 43,560 sq ft

📏 Key Features:
✔ Multiple Shape Support – Calculate area for 7+ shapes
✔ Unit Converter – Switch between sq ft, sq m, acres, hectares
✔ Mobile-Friendly – Works on phones, tablets, and desktops
✔ Instant Results – No waiting, just fast calculations

🔍 Google Search Keywords:
“area calculator,” “square footage calculator,” “calculate sq ft,” “circle area calculator,” “land area measurement tool,” “flooring calculator,” “acreage calculator,” “construction area tool,” “plot size calculator,” “room size estimator.”

🏡 Common Uses:

Measure flooring, walls, or roofing
Calculate lawn size for landscaping
Estimate paint or carpet requirements
Determine property lot dimensions
Plan garden beds or irrigation

🚀 Try it now on www.calculator-app.site