Pressure Unit Converter

WHAT IT DOES

Pressure Unit Converter transforms pressure values between six common units: PSI (pounds per square inch), bar, kPa (kilopascal), MPa (megapascal), atm (atmospheres), and mmHg (millimeters of mercury). Enter a pressure value in any unit and see the converted result instantly. You can swap the input and output units with one click, adjust the decimal precision (0-10 places), and copy the result to your clipboard. A comparison display shows the unit names alongside the values for context. The tool is useful for engineering, automotive, meteorology, and scientific applications.

WHERE IT RUNS

The extension runs entirely within your browser's local environment using the BotGentz framework. All pressure conversion, unit calculation, and formatting occur on your machine without any network requests. No pressure data, conversion results, 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. Pressure conversion uses standard conversion factors.

HOW TO USE

Click the extension toolbar icon to open the Pressure Unit Converter panel. Enter a pressure value in the input field. Select the "From" unit (PSI, bar, kPa, MPa, atm, or mmHg) and the "To" unit. The conversion result appears instantly if auto-convert is enabled. Click "Convert" to manually trigger a conversion. Click "Swap Units" to exchange the from and to units. Click "Copy Result" to copy the conversion result to your clipboard. Toggle "Auto convert" to enable or disable real-time conversion. Toggle "Show comparison" to display the unit names alongside the values. Toggle "Swap default direction" to control whether the default from/to direction is swapped. Adjust the "Decimal places" (0-10) to control the precision of the result. The tool updates automatically when you change settings.

THE PRESSURE CONVERSION ENGINE — WHY IT WORKS

Most pressure converters use hard-coded formulas for each conversion pair. This tool uses a factor-based conversion engine where each unit has a factor relative to PSI. The conversion formula is: result = value * (toFactor / fromFactor), where factors are: PSI = 1, bar = 0.0689476, kPa = 6.89476, MPa = 0.00689476, atm = 0.068046, mmHg = 51.7149. For example, to convert 14.7 PSI to bar: 14.7 * (0.0689476 / 1) = 1.01325 bar. To convert 1 atm to PSI: 1 * (1 / 0.068046) = 14.696 PSI. This factor-based approach ensures accurate conversions across all six units with a single formula. The auto-convert feature updates results in real time as you type.

THE PANEL

The Pressure 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 input area, unit selectors, and result display adjust proportionally. Press the Escape key to close the panel instantly. The panel maintains independent state for each browser tab, allowing you to convert pressure values in multiple tabs simultaneously.

PLEASE NOTE

This extension requires the free BotGentz extension framework to be installed and enabled. The tool supports six common pressure units; additional units are not currently supported. The auto-convert feature triggers on every input event; disabling it can improve performance on slower devices. The comparison display is optional and can be toggled on or off. 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.