Free online tool to measure your property. See satellite imagery of your address and trace your yard, driveway, or entire lot to get exact square footage.
Free instant results · No signup required
Almost every outdoor project starts with a square-footage number. Fertilizer and grass seed are dosed per 1,000 sq ft — guess wrong and you either waste money or burn the lawn. Fence and landscaping quotes are priced from your perimeter and area, so walking into the conversation with real numbers keeps estimates honest.
Lot size also drives real estate comparisons — two similar houses on very different lots aren't comparable at all — and it's the backbone of any yard care plan, from mowing time to irrigation zones. And plenty of people measure for the simplest reason of all: they're curious how big their piece of land actually is.
1. Physical measurement. A 100-foot tape or a measuring wheel is the most accurate approach for anything you can physically reach. The catch: you have to walk your entire property, and irregular lots turn into a geometry exercise — breaking curves and angles into rectangles and triangles, then adding them up. Budget 30–60 minutes for a typical yard.
2. Online satellite tools like LotSite. Free and instant — enter your address and satellite imagery of your property appears with a measuring grid. You trace what you can see from above: fences, driveways, sidewalks, tree lines. Accurate for planning purposes, and the best free option when you can identify your boundaries visually. No math, no walking, works for any shape. See the property measuring tool overview or the full guide to measuring property online.
3. Professional survey. A licensed surveyor gives you the legally definitive answer, accurate to the inch. It's also expensive — typically $300–$800 — and takes days to weeks to schedule. It's required for legal disputes and precise construction, and overkill for buying mulch. For a deeper comparison of every method, see how to measure your property.
The whole process takes a couple of minutes for most lots. Ready to try it? Open the free measurement tool directly, or start with your address above.
Total lot size is the real-estate number — it drives comparable-property value and shows up on every listing. Trace your whole boundary, or see the lot size by address guide for how the lookup methods compare, or the property size lookup page for any address.
Lawn area sets your fertilizer and seed quantities — measure just the grass sections and plug the number into the lawn calculator. Driveway area determines sealing and paving costs — the concrete calculator turns square feet into cubic yards.
Fence perimeter — not area — is what fence installers quote from; measure your boundary length and run it through the fence calculator. And patio area drives tile, paver, and decking quotes — the paver calculator handles the material math.
Enter your address, trace what you see, and get exact square footage in minutes.
Free. No signup. Works nationwide. Or open the measurement tool directly. Wondering where your boundaries fall? See the property lines map or find my lot size.