Unit Converter

WHAT IT DOES

Unit Converter provides quick, accurate conversions between common units across multiple categories. Choose from length, mass, temperature, volume, area, speed, and data storage—each with a comprehensive set of units including both metric and imperial systems. Enter a value and the conversion happens instantly, showing the result in the selected target unit. Swap units with a single click, and use the common conversions section for frequently used conversions. The result can be copied to your clipboard with one click, and the decimal precision is adjustable.

WHERE IT RUNS

The extension runs entirely within your browser's local environment using the BotGentz framework. All unit conversions, calculations, and formatting occur on your machine without any network requests. No conversion data, unit preferences, or user activity is ever transmitted, uploaded, or stored externally. The tool works on any website and respects the browser's security boundaries, operating within the isolated extension sandbox. Unit conversion uses pure JavaScript mathematical calculations.

HOW TO USE

Click the extension toolbar icon to open the Unit Converter panel. Select a category (Length, Mass, Temperature, Volume, Area, Speed, or Data Storage) from the dropdown. Choose the "From" unit and the "To" unit from their respective dropdowns. Enter a value in the input field—the conversion result appears instantly. Click "Swap Units" to reverse the from and to units. Click "Copy Result" to copy the conversion result to your clipboard. The "Common Conversions" section shows frequently used conversions for the current category; click any to apply it. Toggle "Show common conversions" to show or hide the common conversions section. Toggle "Swap default direction" to reverse the default conversion direction. Adjust the "Decimal places" (0-10) to control result precision. The panel updates automatically as you change any setting.

THE CONVERSION ENGINE — WHY IT WORKS

Most unit converters use separate conversion factors for each unit pair, leading to code bloat and potential errors. This tool uses a unified base-unit conversion engine: every unit is defined by its conversion factor to a base unit (meters for length, kilograms for mass, liters for volume, etc.). When converting between units, the engine first converts the input value to the base unit by multiplying by the from-unit's factor, then converts from the base unit to the target unit by dividing by the target unit's factor. Temperature is handled separately with custom functions because it uses offset-based conversions (Celsius, Fahrenheit, Kelvin). This approach ensures consistency and makes adding new units trivial. The live conversion updates on every input event, and the common conversions section pre-populates frequently used conversions based on the selected category. The result formatting respects the user's decimal precision setting.

THE PANEL

The Unit Converter panel is fully draggable by its title bar and remembers its position on screen per website. It snaps to the edges of your browser window for clean alignment. Collapse the panel to a compact icon strip using the minimize button, restoring it with a single click. Resize the panel by dragging any edge or corner; the conversion controls and results adjust proportionally. Press the Escape key to close the panel instantly. The panel maintains independent state for each browser tab, allowing you to perform conversions in multiple tabs simultaneously.

PLEASE NOTE

This extension requires the free BotGentz extension framework to be installed and enabled. The tool uses standard conversion factors; some units may have regional variations (e.g., gallons US vs UK). Temperature conversions use standard formulas and support Celsius, Fahrenheit, and Kelvin. The data storage units use binary prefixes (1024-based) which is the standard for most computing applications. All conversion data is processed locally and is never transmitted, logged, or shared. The extension requests no network permissions and functions entirely offline. The source code is fully auditable and available for review.