Use our online actual size ruler to accurately measure objects in both centimeters and inches. Print-ready and calibrated for your screen.

Free online ruler for accurate measuring in inches, centimeters, and millimeters. Use our real size digital ruler on any phone, tablet, or computer.

Use our 100% accurate online ruler to measure objects in 'Actual Size'. Supports Centimeters (CM), Millimeters (MM), and Inches. Easy calibration with a credit card for all screens.

Online Ruler will help you to take actual size measurements of any object in mm, cm, and inches. Also, it's free and easy to use.

Yes, I am using 17" Monitor . Save this settings. I don't know what monitor size is.

Measure in cm, inches, or mm with this accurate online ruler. A real-size, printable tool for desktop or phone that works vertically or horizontally.

An online screen ruler tool for accurate on-screen measurements. Measure in actual size using centimeters, millimeters, inches, or pixels.

Online ruler to quickly measure objects on any device with any screen size. Accurate, user-friendly, supports both cm and inches. Perfect for instant size checks without needing any tools!

Enter visible screen width below to calibrate ruler.

Free online ruler tool for measuring inches (in), centimeters (cm) and millimeters (mm)! The ruler scales to actual size based on your screen size. Every device has a different pixel density, so we auto …