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How to measure the area of a plot of land
How much seed for the new lawn? How much fencing for the field? Is the plot in the advert as big as it says? Your phone can give you a fast estimate, either by walking the edge or by tracing it on a satellite map from the sofa.
Two ways to measure, how to check your result, then land area apps. Phone measurements are estimates: GPS drifts and satellite images can be old or shifted. For buying, selling, building or boundary disputes, use the official land registry and a licensed surveyor.
Walk the boundary
GPS mode records your path as you walk the edge. Walk slowly, pause at each corner and keep the phone in open sky away from tall buildings and trees for steadier readings. Compare apps in land area apps.
Or trace it on a map
Map mode lets you tap each corner on a satellite image. It is quick for fields you cannot walk, but check that the image matches what is on the ground today.
Measuring indoors?
For rooms and furniture, a phone camera with AR does a better job; see how to measure a room with your phone and measure apps.
Put the number to work
Use the area to plan beds and paths; see how to plan a vegetable garden. For anything legal, ask for the registered boundaries.
| Step | What you do | Why |
|---|---|---|
| 1. Choose a method | walk with GPS or tap on a map | fit the plot |
| 2. Mark the corners | every turn in the boundary | a true shape |
| 3. Close the shape | back to the first point | an area, not a line |
| 4. Units | square metres, hectares, acres | match your plans |
| 5. Measure twice | compare both results | catch drift |
Frequently asked questions
How accurate is measuring land with a phone?
Good enough for planning a garden or a fence. Not accurate enough for legal boundaries.
Can I measure a field without walking it?
Yes, by tapping the corners on a satellite map, as long as the image is recent.
Who measures land officially?
A licensed surveyor, with the boundaries held by the official land registry.