Acreage Calculator

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Acreage & Land Area Calculator

Determine land size by entering dimensions or total area.

Length & Width Total Square Footage
Feet Yards Meters
Total Acres: 0.00 ac
Square Feet: 0.00 sq ft
Square Meters: 0.00 m²
Hectares: 0.00 ha

How to Use the Acreage Calculator

Calculating the size of a piece of land is crucial for real estate transactions, farming, and landscaping. This calculator allows you to find the total acreage using two primary methods:

  • Length & Width: Ideal for rectangular plots of land. You enter the dimensions, and the tool calculates the area and converts it to acres.
  • Total Square Footage: If you already know the total square footage (from a deed or survey), enter it directly to see the conversion to acres and hectares.

What Exactly is an Acre?

An acre is a unit of land area commonly used in the United States and the United Kingdom. Historically, an acre was defined as the amount of land that could be plowed by one man with a yoke of oxen in a single day. Today, it is strictly defined by mathematical measurement.

Unit Equal To (Approx)
1 Acre 43,560 Square Feet
1 Acre 4,840 Square Yards
1 Acre 4,047 Square Meters
1 Acre 0.4047 Hectares
640 Acres 1 Square Mile

Formula for Calculating Acreage

To calculate the acreage of a rectangular lot manually, follow this formula:

Area in Acres = (Length in Feet × Width in Feet) / 43,560

If you are using meters, the formula changes to reflect the conversion factor:

Area in Acres = (Area in Square Meters) / 4,046.86

Common Land Measurement Examples

Example 1: A Standard Suburban Lot
If a lot is 75 feet wide and 150 feet deep, the total square footage is 11,250 sq ft. Dividing 11,250 by 43,560 gives approximately 0.258 acres, or roughly a quarter-acre lot.

Example 2: A Football Field
A standard American football field (including end zones) is about 57,600 square feet. This equates to approximately 1.32 acres.

Why Acreage Calculation Matters

Understanding acreage is essential for several reasons:

  • Zoning Laws: Many local governments have minimum acreage requirements for building homes or keeping livestock.
  • Agricultural Yield: Farmers use acreage to determine how much seed to buy and predict crop yields.
  • Property Value: Land is often priced "per acre" in rural real estate markets.
  • Fencing: Knowing the area helps in estimating the perimeter needed for fencing projects.
function toggleInputs() { var mode = document.getElementById('calcMode').value; var dims = document.getElementById('dimsInputs'); var total = document.getElementById('totalInputs'); if (mode === 'dims') { dims.style.display = 'block'; total.style.display = 'none'; } else { dims.style.display = 'none'; total.style.display = 'block'; } } function calculateAcreage() { var mode = document.getElementById('calcMode').value; var unit = document.getElementById('unitInput').value; var areaSqFt = 0; var areaSqMt = 0; var acres = 0; var hectares = 0; if (mode === 'dims') { var length = parseFloat(document.getElementById('landLength').value); var width = parseFloat(document.getElementById('landWidth').value); if (isNaN(length) || isNaN(width) || length <= 0 || width <= 0) { alert("Please enter valid positive numbers for length and width."); return; } var rawArea = length * width; if (unit === 'feet') { areaSqFt = rawArea; } else if (unit === 'yards') { areaSqFt = rawArea * 9; } else if (unit === 'meters') { areaSqFt = rawArea * 10.7639; } } else { var totalInput = parseFloat(document.getElementById('totalAreaInput').value); if (isNaN(totalInput) || totalInput <= 0) { alert("Please enter a valid total area."); return; } if (unit === 'feet') { areaSqFt = totalInput; } else if (unit === 'yards') { areaSqFt = totalInput * 9; } else if (unit === 'meters') { areaSqFt = totalInput * 10.7639; } } // Conversions from Square Feet acres = areaSqFt / 43560; areaSqMt = areaSqFt / 10.7639; hectares = acres * 0.404686; // Display results document.getElementById('resAcres').innerText = acres.toLocaleString(undefined, {minimumFractionDigits: 3, maximumFractionDigits: 3}) + " ac"; document.getElementById('resSqFt').innerText = areaSqFt.toLocaleString(undefined, {maximumFractionDigits: 2}) + " sq ft"; document.getElementById('resSqMt').innerText = areaSqMt.toLocaleString(undefined, {maximumFractionDigits: 2}) + " m²"; document.getElementById('resHectares').innerText = hectares.toLocaleString(undefined, {minimumFractionDigits: 4, maximumFractionDigits: 4}) + " ha"; document.getElementById('acreResult').style.display = 'block'; }

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