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Area Calculator Pro – Free Online Area & Unit Conversion Tools

Free Area & Land Calculators

Instantly calculate area, convert units, and get accurate measurements for any project — no signup required.

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Free Tools
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📏 Shape Area Calculators

Area Calculators

Calculate area for any shape — rectangle, circle, triangle, and more

Popular
Rectangle Area Calculator
Calculate area using length × width formula instantly
Square Area Calculator
Area of a square: side × side
Circle Area Calculator
Area = π × r² — enter radius or diameter
Triangle Area Calculator
½ × base × height formula with 3 input modes
Trapezoid Area Calculator
½ × (a + b) × h formula for trapezoids
Parallelogram Area Calculator
Base × height calculation
Ellipse Area Calculator
π × a × b formula for ellipses
Regular Polygon Area Calculator
Any regular polygon from triangle to octagon
📐
Area & Perimeter Calculator
Get both area and perimeter in one calculation

🔄 Unit Converters

Area Unit Converters

Convert between square feet, acres, meters, yards, and more

🔥 Top 🔢
Square Feet to Acres
Instantly convert sq ft to acres (÷ 43,560)
🔥 Top 🌾
Acres to Square Feet
Convert acres to sq ft (× 43,560)
📏
Sq Ft to Square Yards
Divide by 9 to convert sq ft to sq yards
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Square Yards to Sq Ft
Multiply by 9 to get square feet
🌍
Sq Ft to Square Meters
Convert sq ft to m² (× 0.0929)
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Square Meters to Sq Ft
Convert m² to sq ft (× 10.7639)
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Acres to Hectares
× 0.404686 to convert acres to hectares
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Hectares to Acres
× 2.471 to convert hectares to acres
Popular 🏠
Square Footage Calculator
Calculate total square footage of multiple rooms
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Acreage Calculator
Calculate lot size in acres from dimensions
🗺️
Lot Size Calculator
Calculate property lot size in multiple units

🏗️ Construction Calculators

Smart Construction Calculators

Practical tools for home improvement, landscaping, and construction projects

💸 High Value 🪵
Flooring Calculator
Calculate flooring needed with waste allowance
💸 High Value 🧱
Concrete Calculator
Calculate concrete volume in cubic yards/meters
🎨
Paint Coverage Calculator
How many gallons/litres to paint a room
🌱
Landscaping Area Calculator
Calculate mulch, soil, seed needed for gardens
🏚️
Roofing Area Calculator
Calculate roof area in squares (100 sq ft)
📦
Surface Area Calculator
Total surface area for 3D shapes

📖 Guides & Info

Learning Guides

Understand area calculations with step-by-step guides

📖
How to Calculate Area
Complete guide with formulas for every shape
How Many Sq Ft in an Acre?
43,560 sq ft = 1 acre — explained + converter
🧮
Area Formula Reference
All area formulas in one place with examples
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