Pressure Converter

1. Type any value. Enter a number in any unit field and all 8 units update at once. No button to press.
2. Common use case: tire pressure. Car tires in the US are rated in PSI (typically 32-35 psi). European vehicles often use bar (2.2-2.5 bar). Type your tire pressure in the PSI or bar field to see the equivalent.
3. Common use case: blood pressure. Blood pressure is measured in mmHg (millimeters of mercury). A normal reading is 120/80 mmHg. Type 120 in the mmHg field to compare with other units.
4. Common use case: weather. Barometric pressure in weather forecasts uses millibars (1 mbar = 0.1 kPa) or inches of mercury (inHg). Standard atmosphere is 1013.25 mbar = 29.92 inHg.

Example: a car tire inflated to 35 psi. Type 35 in the PSI field to see: 241,317 Pa, 241.317 kPa, 0.241317 MPa, 2.41317 bar, 1 atm would be 14.696 psi, 1,810 mmHg.

All conversions use pascals (Pa) as the base unit:

Value in pascals = Input × toPascals factor
Result in target unit = Value in pascals ÷ toPascals factor

Useful reference points: standard atmosphere (1 atm) = 101,325 Pa = 14.696 psi = 760 mmHg = 29.921 inHg = 1.01325 bar. These are the conditions at sea level that define "standard" in many engineering and scientific calculations.