Screen Ruler
Measure anything on your screen in pixels, centimeters, or inches. Click and drag to measure distances!
Click and drag to measure
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💡 Tips
- • Use Horizontal mode for width measurements
- • Use Box mode to get width, height, and diagonal
- • Adjust DPI for accurate physical unit conversion
- • Grid squares are 20×20 pixels
Features
- Pixel/cm/inch units
- Horizontal/vertical/box modes
- DPI detection
- Click and drag measurement
- Copy measurements
How to Use
- 1Select measurement mode
- 2Choose unit (px/cm/in)
- 3Click and drag on canvas
- 4Copy the result
Frequently Asked Questions
How accurate is this?
For pixels, it's exact. For physical units, it depends on your monitor's DPI calibration.
Can I measure my whole screen?
This measures within the canvas area. For full screen, use browser dev tools or a desktop app.