This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

Unit Converter Pro


This widget can be added anywhere in your site and provides a fully featured unit converter that can be used in various configurations. You can either have all types of measurement available and let the user decide depending on the use case, or you can specify in the widget settings which measurements you want to enable users to convert units in depending on you niche. This converters are super fast and have no underlaying api or server calls, Everything happens instantly in the same window with no page reload or extra load in the backend.

Measurements Available

  • Length
  • Area
  • Mass
  • Volume
  • Volume Flow Rate
  • Temperature
  • Time
  • Frequency
  • Speed
  • Pace
  • Pressure
  • Digital
  • Illuminance
  • Parts-Per
  • Voltage
  • Current
  • Power
  • Apparent Power
  • Reactive Power
  • Energy
  • Reactive Energy
  • Angle
  • Charge
  • Force
  • Acceleration


  • This easy to use and implement widget has been developed and powered by!


  • All Measurements Calculators Demo
  • Length Calculator Demo
  • Widget View
  • Widget View With Select


There are two ways you can install this plugin into your site. Either by downloading it directly from the WordPress plugin directory and then uploading it into  /wp-content/plugins directory of your WordPress installation using either FTP or your hosting account file manager. Or by installing it automatically from the plugins section inside the admin dashboard.

You can enable and access it by going to Appearance > Widgets. Find the widget named Unit Converter and drag and drop it to your desired location on your site.


May 30, 2023
I was working on a client's site and I needed a unit converter and I am so glad I found UCP. It works flawlessly and you can choose from 30+ conversions
April 3, 2023
They put their branding plus added ads on the widget too. i tried to remove it but didn't removed also i reached out to them they said we'll not remove the ads you can delete our plugin. wow they just added their branding plus earning from from our website. this is illigal.
January 13, 2021
It contains all the converrters that are required by most people including engineers. Thanks to developers for work.
May 7, 2020
I have been looking for such a widget for a very long time. I only have one request if possible can you add also currency conversion?
Read all 3 reviews

Contributors & Developers

“Unit Converter Pro” is open source software. The following people have contributed to this plugin.


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Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.



  • Stable version