Pressure Converter

This free pressure converter converts between more than two dozen pressure units — pascals, kilopascals, megapascals, hectopascals, bar, millibar, psi, ksi, atmospheres, technical atmospheres, torr, mmHg, cmHg, inHg, millimetres and inches of water, kgf/cm², kgf/m², N/mm², dyne/cm² and more. Great for engineering, HVAC, vacuum work, weather and tyre pressures.

Enter a value, pick your two units and the result updates live, with the exact conversion formula shown beneath. The All unitstable converts your input into every supported unit at once, so you can read off (and copy) any equivalent without re-picking. Use the precision control to switch between an automatic sensible rounding, a fixed number of decimal places, or six significant figures. Copy a single result, copy the whole table, or swap the two units in one click.