Measure your property from your couch. See satellite imagery of any U.S. address and trace the visible boundaries — square footage is calculated as you go.
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Yes — with satellite imagery plus a tracing tool. Modern satellite views are sharp enough to distinguish a lawn from a driveway from a garden bed, so if you can identify your boundaries visually, you can measure them. Free options exist; LotSite is one — enter an address and trace on the imagery, no signup.
Set expectations honestly: online measurement is good for planning, not for legal disputes. A careful trace lands within a few percent of a physical measurement — exactly what you need for fertilizer, fencing quotes, and materials, and far better than guessing when you can't physically walk the property (a listing three states away, say). When the stakes are legal — boundary disputes, construction permits — a licensed survey is the only answer. For every offline method too, see how to measure your property.
The whole thing takes a few minutes. Start above, open the measurement tool directly, or see the measure my lot walkthrough for the lot-specific version.
1. Zoom in as far as you can. Precision comes from tracing at high zoom — measure one section at a time rather than the whole lot from far out. 2. Anchor on visible landmarks. Corners of the house, driveway seams, and fence posts give you fixed reference points to trace from.
3. Match multiple boundary features. If the fence, the mowing line, and the hedge all agree, you've probably found the boundary; if they disagree, be conservative. 4. Cross-check with assessor data. Your county's recorded lot size is a free sanity check — if your trace is way off from it, retrace.
5. Escalate when it matters. For fences on the line, additions, or anything a neighbor might contest, follow your online measurement with a professional survey — online numbers are for planning, surveys are for the law.
Enter your address, trace what you see, and get square footage in minutes — free.
Free. No signup. Works nationwide. Or open the measurement tool directly.