Pressure Converter

One bar is about 14.5038 psi, and one psi is about 0.0689 bar. The tool uses the exact factor (1 psi = 6,894.757 Pa), so tyre and equipment pressures stay accurate.

Almost, but not exactly. One bar is 100,000 Pa while one standard atmosphere is 101,325 Pa — about 1.3% larger. They are close enough to confuse in casual use, which is why the tool keeps both.

Check the sticker in the door jamb or the manual — typically 2.0–2.5 bar (about 29–36 psi) for a passenger car. This tool converts the number; it does not know your specific vehicle, so always follow the manufacturer’s figure.

They are the same unit scaled by 1000: 1 kPa = 1,000 Pa and 1 MPa = 1,000,000 Pa. The pascal itself is tiny (about the pressure of a sheet of paper resting on a table), so kPa and MPa are used for practical values.

Millimetres of mercury is the traditional unit for blood pressure and for barometric/vacuum measurements. One mmHg is about 133.3 Pa; standard atmospheric pressure is 760 mmHg. It is offered here for those readings.

It converts the number you type, unit to unit, without adding or removing atmospheric pressure. Whether a value is gauge (above atmospheric, like a tyre reading) or absolute depends on the instrument — the conversion factor is the same either way.

Yes. You can type 2,2 or 2.2 and both mean two point two. Grouping separators in pasted numbers are read too, so 1.013 is understood correctly.

Conversions run at full floating-point precision using exact unit definitions and are shown to six decimal places with trailing zeros removed — precise enough for tyres, weather and most engineering work.

No. The conversion runs entirely in your browser; nothing is uploaded and analytics never receives the numbers you type.