Square Footage Calculator

Calculate the square footage of any area using rectangle, triangle, circle, or trapezoid shapes. Free online area calculator.

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About Square Footage Calculator

Our Square Footage Calculator makes it easy to measure any area. Choose your shape, enter dimensions, and instantly get the total area in square feet, square meters, square yards, and acres. Add multiple areas for complex floor plans.

Square Footage Calculator

Shape ?Select the shape of the area you want to calculate

Measurement Unit ?Choose the unit for your measurements. Results will also be shown in other units.

Length (ft) ?The length of the rectangular area

Width (ft) ?The width of the rectangular area

Waste Margin (%) ?Add a percentage for cutting waste or material overage (e.g. 10% for flooring)

Additional Areas

Add up to 3 extra areas to calculate total square footage.

Total Area

Main Area

Additional Areas

In Square Meters

Calculation Breakdown

Shape --

Dimensions --

Formula --

Waste Margin --

Area --

Unit Conversions

Square Feet --

Square Meters --

Square Yards --

Acres --

How It's Calculated

This calculator computes the area of common geometric shapes used in construction, landscaping, and real estate. Enter your dimensions, and the tool calculates the precise square footage. You can also add multiple areas to get a combined total.

Formulas

Rectangle Area = Length × Width

Triangle Area = 0.5 × Base × Height

Circle Area = π × (Diameter ÷ 2)²

Trapezoid Area = 0.5 × (Base1 + Base2) × Height

Real-Life Examples

Flooring

Room: A 12 ft × 14 ft living room = 168 ft². Add 10% waste = 184.8 ft² of flooring needed.

Garden

Lawn: A triangular garden bed with a 20 ft base and 8 ft height = 80 ft² of soil needed.

Patio

Circular: A patio with 12 ft diameter = π × 6² = 113.1 ft² of pavers required.

Lot

Irregular: A trapezoid lot with bases 50 ft & 70 ft and height 40 ft = 2,400 ft² (0.055 acres).

Disclaimer: Results are for general educational purposes only. Please verify important measurements and calculations independently before making purchasing or construction decisions.

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Features

Security

Secure & Private

Your files are processed securely and deleted immediately after.

Speed

Fast Processing

Get your results in seconds with our optimized processing engine.

Setup

No Installation

Works entirely in your browser. No software to install.

Pricing

Free to Use

Use this tool completely free with no hidden charges.

Limit

Generous Limits

Enjoy generous file limits with no surprise caps on size or count.

Quality

High Quality Output

Results are rendered at full quality, ready for production use.

Frequently Asked Questions

Is Square Footage Calculator free to use?

Yes, this tool is completely free to use. There are no hidden fees or subscription requirements.

Are my files safe and secure?

Absolutely. All file processing happens securely. Your files are automatically deleted from our servers after processing.

What file formats are supported?

This tool supports a wide range of common file formats. Check the upload area for specific format requirements.

Do I need to create an account?

No account is required. Simply upload your file, process it, and download the result.

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Square Footage Calculator

About Square Footage Calculator

Square Footage Calculator

Additional Areas

Calculation Breakdown

Unit Conversions

How It's Calculated

Real-Life Examples

Warning

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Compress PDF

JPG to PDF

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Features

Secure & Private

Fast Processing

No Installation

Free to Use

Generous Limits

High Quality Output

Frequently Asked Questions

Rate This Tool

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