📏 Digital Ruler & Spirit Level

Measure and align directly in your browser – no download, no login

Calibration: Choose your device for accurate measurements. Place an object (e.g. a credit card: 85.6×54mm) against the screen edge.
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Centimetres
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Millimetres
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Inches
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Pixels

Click and drag on the ruler to measure a length

The spirit level needs your device's motion sensor.

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