Pressure Converter
Convert between pressure units
rate：1 bar = 14.50377377 psi
Results in all units
1 bar| Unit | Symbol | Value |
|---|---|---|
| Metric | ||
| Pascals | Pa | 100,000 |
| Kilopascals | kPa | 100 |
| Megapascals | MPa | 0.1 |
| Hectopascals | hPa | 1,000 |
| Bars | bar | 1 |
| Millibars | mbar | 1,000 |
| Kilogram force/cm² | kgf/cm² | 1.019716 |
| Dynes/cm² | dyn/cm² | 1,000,000 |
| Meteorological / Liquid column | ||
| Atmospheres | atm | 0.986923 |
| Millimeters of mercury | mmHg | 750.061683 |
| Inches of mercury | inHg | 29.529983 |
| Millimeters of water | mmH₂O | 10,197.16213 |
| Inches of water | inH₂O | 401.463079 |
| Imperial / US | ||
| Pounds force/in² | psi | 14.503774 |
| Kilopounds force/in² | ksi | 0.014504 |
| Pounds force/ft² | psf | 2,088.543423 |
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Pressure conversion is an important reference in mechanical engineering, meteorology, and medicine. When inflating car tires, gauges often show psi or bar; in repair shops, mechanics might use kg/cm² or kPa. Weather forecasts use hectopascals (hPa).
History & Background
In the 17th century, Torricelli conducted his famous mercury column experiment and invented the barometer. In the 19th century, the Industrial Revolution and steam engines created a need to measure steam pressure, leading to the "standard atmosphere (atm)."
Conversion Details
Pressure conversion is based on the pascal (Pa).
Common conversions: 1 atm = 101.325 kPa = 760 mmHg, 1 bar = 100 kPa ≈ 14.504 psi.