Daily TipsiPhone

How to measure dimensions with your iPhone

You can use the Measure app and your iPhone camera to measure nearby objects.

You can use the Measure app  and your iPhone camera to measure nearby objects. The iPhone automatically detects the dimensions of rectangular objects, or you can manually set the start and end points of a measurement.

Apple says that for the best results, use Measure on well-defined objects located 0.5 to 3 meters (2 to 10 feet) from iPhone. Also note that measurements are approximate.

To start a measurement:

° Open Measure, then use the iPhone camera to slowly scan nearby objects.

° Position the iPhone so that the object you want to measure appears on the screen. Note: For your privacy, when you use Measure to take measurements, a green dot appears at the top of the screen to indicate your camera is in use.

To take an automatic rectangle measurement

° When the iPhone detects the edges of a rectangular object, a white box frames the object; tap the white box or  “+” icon to see the dimensions.

° To take a photo of your measurement, tap  the shutter icon.

To take a manual measurement:

° Align the dot at the center of the screen with the point where you want to start measuring, then tap the “+” icon.

° Slowly pan iPhone to the end point, then tap the “+” icon to see the measured length.

° To take a photo of your measurement, tap the shutter icon.

° To take another measurement, or tap Clear to start over.

To use edge guides:

On supported models, you can easily measure the height and straight edges of furniture, countertops, and other objects using guide lines that appear automatically.

° Position the dot at the center of the screen along the straight edge of an object until a guide appears.

° Tap the “+” icon where you want to begin measuring.

° Slowly pan along the guide, then tap the “+” icon at the endpoint to see the measured length.

° To take a photo of your measurement, tap the shutter icon.

To use Ruler view:

On supported models you can see more detail in your measurements with Ruler view.

° After measuring the distance between two points, move iPhone closer to the measurement line until it transforms into a ruler, showing incremental units of length.

° To take a photo of your measurement, tap the shutter icon.

(This how-to is based on my experiences and info on Apple’s support pages — where the images sometimes come from.)

Dennis Sellers
the authorDennis Sellers
Dennis Sellers is the editor/publisher of Apple World Today. He’s been an “Apple journalist” since 1995 (starting with the first big Apple news site, MacCentral). He loves to read, run, play sports, and watch movies.