Property Measurement App: GPS Land Area Tools

Whether you are planning to build a massive new detached garage, install a perimeter privacy fence, or simply figure out how much fertilizer you need for your lawn, knowing the exact size of your property is crucial. Hiring a professional surveyor to pull your property lines can cost thousands of dollars. Fortunately, you can bypass the surveyor for basic estimates by using a GPS-enabled property measurement app right on your smartphone.

Before you start measuring the dirt around your house, you should know exactly how large the structure on top of that dirt is. Use our Free Roofing Calculator to instantly calculate the total footprint and roofing square footage of your home before you plan any major exterior renovations.

Table of Contents

1. What is a Property Measurement App?
2. How GPS Area Tracking Works
3. Using a Land Measurement App in Acres
4. The Limitations of GPS Measurement
5. Conclusion: The Digital Surveyor
6. Frequently Asked Questions

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What is a Property Measurement App?

A property measurement app is a smartphone application designed to calculate the total square footage, square meters, or acreage of a specific plot of land.

These apps generally offer two different methods of measurement:

1. Manual Satellite Tracing: Similar to Google Earth, you open a satellite view of your property and physically tap the corners of your lot line on your phone screen to draw a polygon. The app calculates the area inside the shape.
2. Live GPS Tracking: This is the most popular feature. You turn on your phone’s location services, press “Start,” and physically walk the perimeter of your property. The app drops digital breadcrumbs as you walk and calculates the area enclosed by your path.

How GPS Area Tracking Works

When you use the live tracking feature of a GPS area app, your phone is communicating with a network of global positioning satellites to pinpoint your exact coordinates on Earth.

As you walk the boundary of your yard, the GPS measurement algorithm logs your latitude and longitude every few seconds. Once you return to your starting point and close the loop, the software uses complex geometric algorithms (known as the Shoelace Formula or Surveyor’s Formula) to instantly compute the total surface area contained within those GPS coordinates.

This method is infinitely faster than using a rolling measuring wheel, especially on heavily wooded, hilly, or overgrown terrain where pushing a wheel in a straight line is impossible.

Using a Land Measurement App in Acres

In the United States, large plots of land are not measured in square feet; they are measured in acres. (One acre is equal to 43,560 square feet).

If you are buying a large piece of rural property and want to verify the listing, you can use an acre measurement app to walk the fence line.

• Most premium property measurement apps will allow you to toggle the output metric between Square Feet, Hectares, and Acres.
• By using the live GPS tracking feature on a large parcel, the app will instantly convert your massive square footage number (e.g., 217,800 square feet) into a clean, easy-to-read acreage number (e.g., exactly 5.0 Acres).

The Limitations of GPS Measurement

While these apps are incredibly useful for landscaping, farming, and general estimates, they are not legally binding.

GPS Inaccuracy: Civilian smartphone GPS chips are generally only accurate to within 10 to 15 feet. If you are walking a small suburban lot, a 15-foot tracking error can drastically skew your total square footage. Cloud cover, tall buildings, and dense tree canopies can also scramble the GPS signal.

Legal Disputes: You cannot use a property measurement app to settle a property line dispute with a neighbor, or to apply for a building permit for a new addition that sits close to the property setback lines. For legal matters, you must hire a licensed surveyor who uses laser-guided total stations and accesses official county plat maps.

Conclusion: The Digital Surveyor

For DIY homeowners, farmers, and landscapers, a GPS property measurement app is an invaluable tool. It allows you to calculate massive tracts of land in minutes, providing highly accurate estimates for fencing, seeding, and general property management without spending a dime on professional surveyors.

Once you know the size of your lot, make sure you know the size of the house sitting on it. Head over to our Free Roofing Calculator right now. By inputting your home’s basic dimensions, you will instantly discover your exact roof square footage and material requirements, ensuring your next major renovation is planned with mathematical precision.

Related Guides

• Measure Roof from Google Maps
• How to Get Square Footage of a Roof

Frequently Asked Questions

What is the best free property measurement app?

There are several highly rated apps available on iOS and Android. “GPS Fields Area Measure,” “Planimeter,” and “Map Pad GPS Land Surveys & Measurements” are all incredibly popular, offering both manual map-tapping and live GPS walking features for free (often with ads).

Can I use a GPS area app to measure my roof?

Technically, yes, you can use the manual satellite-tapping feature to trace your roof. However, the app will only give you the 2D flat area; it will not account for the roof pitch (the slope), meaning the square footage it gives you for the roof will be significantly smaller than the actual surface area.

Is an acre always a perfect square?

No. An acre is simply a measurement of total area (43,560 square feet). An acre of land can be a perfect square, a long skinny rectangle, a circle, or a completely irregular shape, as long as the total area contained within the boundaries equals 43,560 square feet.