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.

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

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

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

A free, accurate online ruler to measure physical objects. Features 1:1 calibration, 30cm+ support, vertical mode, and full-screen measuring.

May 4, 2026 · Free online ruler with inches, centimeters, and millimeters in actual size. Calibrate once with a credit card and measure anything on any screen.

A handy and accurate on-screen online ruler in inches and centimeters/millimeters. For any device.

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.

Looking for an online ruler that’s actually true to size? Our virtual ruler lets you measure in millimeters (mm), centimeters (cm), and inches, all in a 1:1 scale.

Measure accurately with our free online ruler in inches, centimeters, and millimeters. Works perfectly on any phone, tablet, or computer screen.