Pocket RulerRuler & protractor

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Pocket Ruler

Turns your phone, tablet or monitor into an accurate ruler and protractor.

142.5 mm

illustration

Calibrate once with a bank card
Measure with a magnifier
Protractor and long objects

×¼

Coin

Known length Unit

Save measurement

Name

History

Search

Swipe left to delete

Name

Settings

Help

Calibration

Tips

Measuring accurately

Slide mode

When to recalibrate

Keyboard shortcuts

`Tab`
`←` `→` `↑` `↓`
`M`
`1` `2` `3`
`S`
`H`
`Esc`

Calibration profiles

Welcome to Pocket Ruler

Motion sensors