Pressure Converter
Convert pressure units instantly: pascals, kilopascals, megapascals, bar, psi, atmospheres and millimeters of mercury.
Result
Is 32 psi the same as 2.2 bar? How many psi is a 240 kPa tire placard? What is 1 atmosphere in millimeters of mercury? This pressure converter answers all of that as you type, covering pascals, kilopascals, megapascals, bar, psi, atmospheres and mmHg in one place.
The math uses standard reference factors: one bar is exactly 100,000 Pa, one standard atmosphere is exactly 101,325 Pa, one psi is 6,894.76 Pa and one millimeter of mercury is 133.322 Pa. Results are rounded only for display, to a sensible number of significant digits, so you never see floating-point noise.
Everything runs locally in your browser — there is no server call, no account and nothing to install, and the page keeps working offline once loaded. Both fields are live: type in either one and the other updates immediately, press the swap button to reverse the direction, and check the table of common values under the result — it lists typical tire pressures when psi or bar is selected.
It is a practical companion for setting tire pressure from a foreign placard, reading compressor and pressure-washer specs, interpreting weather and altitude data, checking scuba and espresso-machine pressures and doing physics homework — anywhere SI, metric and imperial pressure units collide.