Code has recently changed as of 02-25-21. Use Shift + Refresh in your desktop browser to Hard Refresh any incompatibilities.


Click the map while holding the Shift Key to drop a pin. Change a pin's location by clicking and dragging the pin, without holding the Shift Key in that case. Use Clear Markers and Remove Last Marker to make edits. Search for a place with the search bar. Accessing your current location is not available.

Statement on accuracy:

A careful measurement's error is 1.0% to 3.0% for area and 0.1% to 0.5% for perimeter. This is an Apple Maps system, and the max zoom is not as high as a Google Maps system, thus lower accuracy. These error numbers were found by measuring a NFL football field, like Paul Brown Stadium in Cincinnati, OH. The regulation length with end zones is 109.728 meters, the width is 48.758 meters, and the area is 5351 square meters, or 1.32 acres.


Q: When I try to complete an enclosed perimeter or area shape, I cannot place the last marker near my first marker. How is this done?

A: Drop the marker in a region nearby. Pick up this last-dropped marker by tapping and holding it, then dragging it on top of the first marker you dropped. You will have a near-perfect match-up.

Q: I am using a Macbook with a track pad. When I Shift-Click to set a marker, the marker ends up many pixels away from where I clicked. What is wrong?

A: Your Macbook PRAM needs reset. Follow these official Apple instructions: Reset NVRAM or PRAM on your Mac

Last Updated: 25 February 2021

Copyright © David Gross 2008-2021 • Privacy PolicyContact

Download the mobile apps:
Find Lot Size with Google® Maps for iOS and Android
Map Measurement Tool with Apple® Maps for iOS