Petr Novak

Smart Convert – Currency & Unit Conversion is not just another calculator, it is a complete conversion infrastructure for WordPress sites. Designed for performance and flexibility, it handles everything from simple currency exchanges to complex, non-linear physical unit conversions (like Temperature).
Whether you run a travel blog, or a technical documentation hub, this plugin ensures your visitors see accurate conversions in a format that fits your design.
🚀 My Ambition: Premium Features for Free With this initial release, my goal is to set a new standard for what a free plugin can offer. I believe advanced tools shouldn’t be locked behind a paywall. That is why Smart Convert includes enterprise-grade features usually found only in paid versions: a Custom Unit Builder, a Template Engine, Import/Export capabilities, and Automatic Geolocation—all completely free.
<h3>🌟 Key Features</h3>
💰 Advanced Currency Engine 
* Rates: Supports 153 global currencies + cryptocurrencies (BTC, ETH, etc.). 
* Smart Geo-Location: Automatically detects visitor IP to display their local currency (powered by ipinfo.io). 
* “Spread” & Fees: Add a percentage markup (e.g., 2%) to exchange rates to simulate bank fees or retail pricing. 
* Smart Rounding: Intelligently adjusts decimals (e.g., 0 decimals for JPY, 6 decimals for BTC).
📏 Comprehensive Unit Converter 
* 105+ Built-in Units: Covers 14 categories including Length, Mass, Volume, Temperature, Pressure, Energy, Speed, and Data. 
* Bi-Directional Custom Units: Creating a unit like “Box” (e.g., 1 Box = 12 Items). The plugin automatically generates the reverse conversion logic for you. 
* Complex Math: Handles non-linear conversions (like Fahrenheit to Celsius) with precision offset calculations.
🎨 Visual & Editor Integration 
* Native Gutenberg Block: Visually configure conversions (Amount, From, To, Decimals) with a live backend preview. 
* Inline Toolbar Tool: Select any text in your post and convert it instantly using the rich text toolbar button. 
* Interactive Tooltips: Solves the common “overflow:hidden” clipping issue using a smart portal strategy to display rates on hover. 
* Template System: Design your output using placeholders like <code>{FROM}</code>, <code>{TO}</code>, <code>{RATE}</code>, and <code>{DATE}</code>.
⚙️ Performance & Workflow 
* Zero Database Bloat: Uses robust Object Caching and Transients. 
* Import/Export: Transfer your custom templates and custom units between sites via JSON. 
* Privacy First: External connections are disabled by default until explicit consent is given via the Onboarding Wizard.
<h3>🌍 Internationalization & Translations</h3>
Smart Convert – Currency & Unit Conversion is fully localized and ready for global audiences. The plugin is translated into the following languages:
<ul>
<li>English</li>
<li>Spanish (Español)</li>
<li>Japanese (日本語)</li>
<li>German (Deutsch)</li>
<li>French (Français)</li>
<li>Russian (Русский)</li>
<li>Brazilian Portuguese (Português do Brasil)</li>
<li>Italian (Italiano)</li>
<li>Czech (Čeština)</li>
<li>Dutch (Nederlands)</li>
<li>Turkish (Türkçe)</li>
<li>Polish (Polski)</li>
<li>Indonesian (Bahasa Indonesia)</li>
</ul>
<h3>⚖️ Privacy & External Services Disclosure</h3>
To provide up-to-date exchange rates and geolocation features, this plugin may connect to selected third-party services. 
No data is sent without your explicit consent via the settings page.
<ol>
<li>
Currency & Unit Data (Google Sheets via Proxy)
<ul>
<li>Service: Downloads conversion rates from public datasets.</li>
<li>Mechanism: Requests are routed through a static redirect wrapper on <code>petrnovak.cz</code> to ensure link stability.</li>
<li>Data Sent: Your server’s IP address (standard HTTP request). No visitor data is sent.</li>
<li>Policy: <a href="https://policies.google.com/privacy" rel="nofollow ugc">Google Privacy Policy</a></li>
<li>Proxy Policy: <a href="https://petrnovak.cz/plugins/smart-convert-currency-unit-conversion/privacy-policy.php" rel="nofollow ugc">PetrNovak.cz Privacy Policy</a></li>
</ul>
</li>
<li>
Geolocation (IPinfo.io)
<ul>
<li>Service: Used only if “Auto-detect currency from IP” is enabled in settings.</li>
<li>Mechanism: Sends the visitor’s IP address to IPinfo.io to determine their country code (e.g., “US”).</li>
<li>Data Sent: Visitor IP Address.</li>
<li>Policy: <a href="https://ipinfo.io/privacy" rel="nofollow ugc">IPinfo Privacy Policy</a></li>
</ul>
</li>
</ol>

Smart Convert – Currency & Unit Conversion

The ultimate conversion engine: 153 Currencies, 105+ Units, Custom Unit Builder, GeoIP detection, and a native Gutenberg Block with live previews.

centangle

Ihtisham Zahoor

WP Unit Converter allows you to convert following metrics in numerous different units of measurement.
<ul>
<li>Length/Distance</li>
<li>Temperature</li>
<li>Time</li>
<li>Weight</li>
<li>Area</li>
<li>Speed</li>
</ul>
<h3>Automatic installation</h3>
Automatic installation is the easiest option as WordPress handles the file transfers itself and you don’t need to leave your web browser. To do an automatic install of this plugin, log in to your WordPress dashboard, navigate to the Plugins menu and click Add New.
In the search field type “WP Unit Converter” and click Search Plugins. Once you’ve found this plugin, you can install it by simply clicking “Install Now”.
<h3>Manual installation</h3>
<ol>
<li>Download and unzip the WP Unit Converter plugin</li>
<li>Upload the entire wp-unit-converter/ directory to the /wp-content/plugins/ directory</li>
<li>Activate the WP Unit Converter plugin through the Plugins menu in WordPress</li>
</ol>
<h3>How to use WP Unit Converter?</h3>
You can use WP Unit Converter in either Post/Pages or in Widget area.
<h3>Use in Post/Pages</h3>
Simply copy the following shortcode and paste it into your desired location. 
[wpuc_unit_converter]
<h3>Use in Widget</h3>
WP Unit Converter, creates a Widget Calculator under Available Widgets Area in Widgets Menu, which you can drag & drop to your desired sidebar location.
<h3>License</h3>
WP Unit Converter is distributed under the terms of GNU GPL2.
<h3>Credits</h3>
WP Unit Converter is based on following third-party resource:
<h3>Resources</h3>
<ul>
<li>Icons made by <a href="https://www.freepik.com/" title="Freepik" rel="nofollow ugc">Freepik</a> from <a href="https://www.flaticon.com/" title="Flaticon" rel="nofollow ugc">www.flaticon.com</a> is licensed by <a href="http://creativecommons.org/licenses/by/3.0/" title="Creative Commons BY 3.0" rel="nofollow ugc">CC 3.0 BY</a></li>
</ul>

WP Unit Converter

WP Unit Converter allows you to convert Length/Distance, Temperature, Time, Weight, Area and Speed metrics in different units of measurement.

Smart Convert – Currency & Unit Conversion vs WP Unit Converter