Guides
Practical walkthroughs of common measurement problems — written by someone who actually uses the tool. Each guide is self-contained; pick the one that matches your task.
How to Measure Property Acreage from Satellite Imagery
A practical workflow for estimating the acreage of a residential or rural lot using only satellite tools — including how to handle wooded edges and irregular boundaries.
Read guide →Finding Lot Size From an Address
Three reliable ways to find a property's lot size: county GIS, real estate listings, and direct measurement from satellite imagery. When to trust each.
Read guide →Calculating Roof Area for Solar Panel Sizing
How installers use overhead measurements to estimate panel count and system kW before a site visit, and the corrections you need for tilt and obstructions.
Read guide →Measuring Farmland and Crop Field Acreage
Field shape, headlands, irrigation circles, and how to handle the irregular boundaries that satellite measurement was made for.
Read guide →How to Measure Distance on a Map Accurately
Why straight-line distance is rarely what you actually want, how perimeter differs from path length, and which unit to pick for which job.
Read guide →How Online Area Calculators Actually Work
A non-mathematical walk through spherical geometry, the shoelace formula, and why the two give different answers — especially over large areas or near the poles.
Read guide →Comparing Property Survey Tools: Online vs Professional
When a $0 satellite measurement is enough, when you need a $400 mobile mapping app, and when only a licensed survey will do.
Read guide →Satellite Imagery Accuracy: What to Expect
Pixel resolution, image age, parallax, and the realistic error bars on any measurement made from a public satellite tile.
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