How to use Protractor

Steps, videos and tips for the tool.

Measure with touch, plumb, or manually entered angles.

Watch how it works.

Video coming soon

Getting started

Choose Touch mode and drag the measurement lines. Plumb mode follows device rotation. Manual mode lets you set start and end angles.

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Video coming soon

Basics · Written steps

Video coming soon

Basics · Written steps

Video coming soon

Basics · Written steps

Choose Touch, Plumb or Manual
Choose Touch mode and drag the measurement lines. Plumb mode follows device rotation. Manual mode lets you set start and end angles.

Capture or save a measurement
Turn the camera on when needed. Freeze a frame, capture an image, or tap Save to store the measurement; hold Save for Detailed Save, which opens an editable record.
Align the protractor
Flip the protractor to suit the surface. Watch the leveling colors and hold the device steady when aligning it with a physical object.

Try these steps in the app. All tour instructions stay readable here.

Choose Touch, Plumb or Manual
Choose Touch mode and drag the measurement lines. Plumb mode follows device rotation. Manual mode lets you set start and end angles.
Align the protractor
Flip the protractor to suit the surface. Watch the leveling colors and hold the device steady when aligning it with a physical object.
Capture or save a measurement
Turn the camera on when needed. Freeze a frame, capture an image, or tap Save to store the measurement; hold Save for Detailed Save, which opens an editable record.

Find Protractor in these apps.

The camera is optional inside the tool. Lens, focus, exposure, and other camera options vary by device.

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