Top 9 Online Actual Size Rulers In Metric And Inches

ruler

If I say everything you need is available online. The Internet is a source of information and storage for our daily usage. If you urgently need a physical ruler to measure anything, then the Internet is your solution. Yes! I said it right; you can find online virtual rulers to measure any quantity, such as Inches (in) or metric (cm, mm).

These 8 online actual-size rulers are less accurate than physical rulers, but they can be an option if you still need one. Some of them are iRuler, Piliapp, FreeOnlineRuler, PreciseRuler, Actual Size Online Ruler, Actual Size Ruler, Online Ruler, A Ruler for Windows, and On-Screen Pixel Ruler.

There are three methods to use virtual rulers. These are as follows:

  1. By referring to your monitor’s PPI (pixels per inch)
  2. By comparing the size of commonly used objects (Objects are taken as reference).
  3. By referring to your monitor screen size in inches.

Top 8 Actual Size Online Rulers

Out of all these calibration ways, a ruler based on screen size must contain complete accuracy. I have arranged all the online ruler websites according to their popularity and accuracy. Some include a millimeter ruler, a centimeter ruler, and an inch ruler.

iRuler

iRuler is placed at the first position in our list due to the accuracy it provides. You can measure cm, mm, and even inch with this ruler.

Iruler
iRuler

Piliapp

It supports cm, inch, and pixels. 
There’s an option ‘drag it’ to drag the ruler freely anywhere on the screen. If you need more clarification about your monitor screen size, use Piliapp’s comparing tool to measure the actual monitor size.
piliapp
Philipp Online Ruler

FreeOnlineRuler

An online ruler with centimeters and inches. You can drag this ruler by ctrl+drag to rotate. Just check the flipped option to separate it from the screen.
10 Best online rulers
free online ruler

PreciseRuler

PreciseRuler provides both a simple ruler and L-Square. You can switch between both of these. Both cm and inch options are supplied too.
10 Best online rulers
PreciseRuler

Actual Size Online Ruler

HTML5 and JavaScript power it. It uses the canvas element. The ruler image is dynamic and adjusts/calibrates based on your selected options. You can change ‘Graduation of an inch’ and ‘Show 1/8″ markings’.

10 Best online rulers
Actual Size Online Ruler

Actual Size Ruler

The Actual Size Ruler will automatically detect your screen size resolution and shows a ruler according to it. You can choose either a vertical or horizontal ruler.
10 Best online rulers
Actual Size Ruler
LifeSizer Online Ruler

Online Ruler

This online ruler is written entirely in CSS and will display correctly if your computer is correctly formatted.
10 Best online rulers
Online Ruler

A Ruler For Windows

A Ruler for Windows is a free on-screen pixel ruler / reading for Windows 10, 8.1, 8, 7, Vista, XP, and 2000. The ruler lets you quickly and easily measure objects on your screen. It’s ideal for designing websites, working with graphics, and perfecting the look of your digital products.

10 Best online rulers
A ruler For Windows

On-Screen Pixel Ruler

The free tool by RapidTables is great for checking the pixel details of your screen.

10 Best online rulers
On-Screen Pixel Ruler

FAQs

Can online actual-size rulers be accurate on any device?

The pixel density and calibration of your device's screen determine how accurate online, actual-size rulers are. Measurements are often more accurate on high-resolution displays with exact pixel densities. For precise measurements, it is advisable to calibrate your screen or verify the accuracy of the ruler using an actual measuring tool.

Are there any precautions or limitations when using online actual-size rulers?

Screen calibration and pixel density are crucial for your measurements' precision requirements. Additionally, use caution when making sensitive or important measurements using online actual-size rulers because they could not be as accurate as simple measuring tools.

Can I use online actual-size rulers on my mobile device?

In general, desktop and mobile devices may use online actual-size rulers. You may use them to measure the size of your mobile screen by accessing them using web browsers on smartphones or tablets.

Are online actual-size rulers free to use?

Yes there are a lot of online rulers that are free to use and provide accurate measurements. However, some tools may offer a fee for additional features or premium versions.

Summing Up

When choosing the most appropriate online, actual-size ruler, it is essential to consider factors such as accuracy, ease of use, customization options, and the specific measurement units required. Each option has its strengths, so selecting the one that best fits your needs depends on your preferences and the nature of the tasks. Let us know if you’ve got any other accurate online ruler. We would be happy to update it here.

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