Use the Measure app 
and your iPod touch camera to measure nearby objects. iPod touch automatically detects the dimensions of rectangular objects, or you can manually set the start and end points of a measurement.
For best results, use Measure on well-defined objects located 0.5 to 3 meters (2 to 10 feet) from iPod touch.
Note: Measurements are approximate.
Start a measurement
- Open Measure , then use the iPod touch camera to slowly scan nearby objects.
- Position iPod touch 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.
Take an automatic rectangle measurement
- When iPod touch detects the edges of a rectangular object, a white box frames the object; tap the white box or
to see the dimensions. - To take a photo of your measurement, tap
.
Take a manual measurement
- Align the dot at the center of the screen with the point where you want to start measuring, then tap .
- Slowly pan iPod touch to the end point, then tap to see the measured length.
- To take a photo of your measurement, tap .
- Take another measurement, or tap Clear to start over.
