Ekuation

Square Footage Calculator

This Square Footage Calculator helps you calculate the area of various shapes (squares, rectangles, circles, triangles, trapezoids) and convert between different units of measurement (square feet, square inches, square yards, square meters, acres, hectares). Also includes a price calculator to estimate costs for materials.

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Price Calculator

RESULT

Square Footage
0 ft²
Square Inches
0 in²
Square Yards
0 yd²
Square Meters
0 m²
Acres
0 acre
Hectares
0 ha
Cost
$ 0

Quick Tips

📐

Measuring L-Shaped Rooms

Break the room into two rectangles. Measure and calculate each separately, then add the results together.

Quick Rectangle Calculator

Result: 0.00 ft²

Essential Measurement Tips

🏗️ Construction Standards

  • Measurements are typically taken from the exterior walls
  • Garages and unfinished areas are usually calculated separately
  • Ceiling height requirements vary by local building codes
  • Stairways are counted on each floor they serve

🏠 Real Estate Guidelines

  • Include all finished living areas
  • Exclude outdoor spaces like patios
  • Count finished basement areas separately
  • Note any room dimensions below standard height

Practical Measurement Guide

📏 Basic Measurement Tips

  • Use a laser measure for large spaces and verify with a tape measure
  • Always measure to the nearest 1/4 inch for accuracy
  • Draw a rough sketch before starting measurements
  • Take multiple measurements to verify accuracy

🔍 Special Cases

  • For L-shaped rooms, break into two rectangles and add the areas
  • Include bay windows if they extend to the floor
  • Subtract built-in features like fireplaces from the total area
  • For irregular shapes, break them down into basic geometric shapes

Common Unit Conversions

📊 Length Conversions

  • 1 foot = 12 inches
  • 1 yard = 3 feet
  • 1 meter = 3.28084 feet
  • 1 foot = 0.3048 meters

📐 Area Conversions

  • 1 square foot = 144 square inches
  • 1 square yard = 9 square feet
  • 1 square meter = 10.7639 square feet
  • 1 acre = 43,560 square feet

Understanding Square Footage Calculations

What is Square Footage?

Square footage is a measurement of area in square feet. It's calculated by multiplying the length of a space by its width. This measurement is crucial in real estate, construction, and interior design.

Basic Calculations

Regular Shapes

  • Rectangle/Square: Length × Width
  • Triangle: (Base × Height) ÷ 2
  • Circle: π × radius²

Irregular Shapes

  • Break down into regular shapes
  • Calculate each section separately
  • Add all sections together

Applications

Real Estate

  • Property valuation
  • Rental space calculations
  • Building code compliance

Construction

  • Material estimation
  • Cost calculations
  • Building permits

Interior Design

  • Room layout planning
  • Flooring requirements
  • Furniture placement

Common Measurements

  • Gross Square Footage: Total area including walls
  • Net Square Footage: Usable floor space
  • Livable Square Footage: Finished, heated/cooled space

Best Practices

  1. Measure to the nearest inch for accuracy
  2. Include/exclude areas consistently
  3. Document all measurements
  4. Consider local measurement standards

What to Include/Exclude

Typically Included

  • All finished living areas
  • Enclosed porches (if heated/cooled)
  • Finished basements (check local standards)

Typically Excluded

  • Unfinished areas
  • Open porches
  • Garages
  • Outdoor spaces

Tips for Accurate Measurement

  • Use proper measuring tools
  • Account for wall thickness
  • Double-check all measurements
  • Consider ceiling height requirements

Common Conversion Factors

  • 1 square foot = 144 square inches
  • 1 square yard = 9 square feet
  • 1 square meter = 10.764 square feet

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