Pascal, bar, atmosphere, torr and psi — the units a gas-law question mixes.
Open the Pressure converter →One of 23 unit converters in the ABC Chemistry Calculator Suite, alongside 44 chemistry, physics and maths tools. Nothing is behind a login and no value you type is sent anywhere — the conversion runs in your own browser.
The link above opens the suite with the Pressure set already selected.
Any unit here converts to any other in one step — for example Pa to kPa, Pa to atm, Pa to bar. Values are converted in your browser; nothing is sent to a server.