Inches to Square Feet Calculator

Inches to Square Feet Calculator

Calculation Results:

Total Square Inches: 0 sq in

Total Area: 0 sq ft

Estimated Total Cost: $0.00

How to Convert Inches to Square Feet

Converting measurements from inches to square feet is a fundamental skill for home improvement projects, flooring installations, and general construction. Because there are 12 inches in a foot, a square foot consists of 144 square inches (12″ x 12″).

The Conversion Formula

Square Feet = (Length in Inches × Width in Inches) / 144

Step-by-Step Example

Suppose you have a wooden board that is 48 inches long and 24 inches wide. To find the square footage:

  1. Multiply the length by the width: 48 in × 24 in = 1,152 square inches.
  2. Divide by 144: 1,152 / 144 = 8 square feet.

Why Use This Calculator?

  • Flooring Projects: Determine how many boxes of tile or laminate you need for small spaces.
  • Gardening: Calculate the area of raised garden beds or planters.
  • Art & Framing: Perfect for calculating the surface area of canvas or glass for custom frames.
  • Accuracy: Avoid costly material waste by getting precise decimal conversions.

Common Inch to Square Foot Conversions

Dimensions (Inches) Square Feet
12″ x 12″ 1.00 sq ft
24″ x 24″ 4.00 sq ft
36″ x 36″ 9.00 sq ft
48″ x 96″ 32.00 sq ft
function calculateSqFt() { var length = parseFloat(document.getElementById("lengthIn").value); var width = parseFloat(document.getElementById("widthIn").value); var costPerUnit = parseFloat(document.getElementById("costPerSqFt").value); var resultDiv = document.getElementById("results"); var totalSqInSpan = document.getElementById("totalSqIn"); var totalSqFtSpan = document.getElementById("totalSqFt"); var costResultDiv = document.getElementById("costResult"); var totalCostSpan = document.getElementById("totalCost"); if (isNaN(length) || isNaN(width) || length <= 0 || width 0) { var finalCost = totalFeet * costPerUnit; totalCostSpan.innerHTML = "$" + finalCost.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); costResultDiv.style.display = "block"; } else { costResultDiv.style.display = "none"; } resultDiv.style.display = "block"; resultDiv.scrollIntoView({ behavior: 'smooth', block: 'nearest' }); }

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