Sizeit requires a minimum resolution of 626px

Rotate your phone, visit the site on your laptop or desktop computer, or maximize your browser window.

About Us | Contact WeChat QR

About Us Contact 中文

Online Ruler - Sizeit.io

An online ruler that lets you generate real world measurements for anything.

Enter your measurements

Calibrate your screen »

How to use Sizeit?

Using Sizeit is easy - Just follow the steps below to get real dimensions right on your screen!

How to use Sizeit - Step 1
1Click on "Calibrate your screen".
How to use Sizeit - Step 2
2Place a credit card against the screen.
How to use Sizeit - Step 3
3Click on + or - to match them.
How to use Sizeit - Step 4
4Click OK when you're finished.
How to use Sizeit - Step 5
5Enter your desired dimensions and click "Size it".
How to use Sizeit - Step 6
6Your object is now displayed on the screen in real life dimensions!
Reset

Add another object

Object Comparison