Need to measure something in inches but don't have a ruler? Our Online Inch Ruler can help you. This ruler can be used on any device that has a browser and internet access, like a smartphone, tablet, laptop, or desktop. We made it perfect for quick measurements anytime you need it. It can be easily calibrated and used in fullscreen, vertically or horizontally.

How to Use?

• Open the Online Inch Ruler on your device.
• Choose how you want the ruler: vertical or horizontal.
• Calibrate in settings if needed.
• Align the object with the ruler on your screen.
• Read the measurement.

How to Calibrate the Ruler?

• Go to settings screen by clicking settings icon.
• Enter your screen size in inches or select PPI.
• We have created a PPI Calculator for calibration using the PPI method.

This ensures each inch on the ruler matches an actual inch.