Pressure Unit Converter | psi to pascal Studio
Convert pressure units instantly between psi, pascal, bar, atmosphere, and more. Includes conversion tables and common presets.
Pressure Studio
METRIC / SI STANDARDS
IMPERIAL / US STANDARDS
ATMOSPHERIC STANDARDS
Pressure Formula
Pressure (P) = Force (F) / Area (A)1 Pascal is defined as 1 Newton per square meter.
Common Pressure Benchmarks
| psi | Pascal (Pa) | KiloPascal (kPa) | Bar | Atmosphere (atm) |
|---|---|---|---|---|
| 0.1 | 689.48 | 0.6895 | 0.006895 | 0.006805 |
| 0.5 | 3447.38 | 3.4474 | 0.034474 | 0.034023 |
| 1 | 6894.76 | 6.8948 | 0.068947 | 0.068046 |
| 5 | 34473.80 | 34.4738 | 0.344737 | 0.340231 |
| 10 | 68947.60 | 68.9476 | 0.689474 | 0.680462 |
| 15 | 103421.40 | 103.4214 | 1.034212 | 1.020693 |
| 20 | 137895.20 | 137.8952 | 1.378949 | 1.360924 |
| 50 | 344738.00 | 344.7380 | 3.447372 | 3.402309 |
| 100 | 689476.00 | 689.4760 | 6.894745 | 6.804619 |
When to Use Which Unit
Pascal (Pa)
The SI base unit for pressure. Used in scientific calculations and physics. 1 Pascal is a very small pressure (1 Newton per square meter).
KiloPascal (kPa)
Commonly used in engineering and for describing fluid pressure in systems. It is more practical than the base Pascal for everyday engineering.
Hecto Pascal (hPa)
Used in meteorology to measure atmospheric pressure. It is numerically identical to the millibar (mb).
PSI (Pounds per Sq Inch)
The standard unit in the US/UK for everyday applications like tire pressure, scuba tanks, and residential water systems.
Bar
Widely used in industry and meteorology. 1 Bar is approximately equal to the atmospheric pressure at sea level.
Millibar (mb)
The standard unit for barometric pressure in weather reports. Equal to one-thousandth of a bar.
Atmosphere (atm)
A unit based on the average atmospheric pressure at sea level. Used in chemistry and diving depth calculations.
Torr (mmHg)
Historically used in blood pressure measurement. Also used in vacuum systems to measure very low pressures.
Overview & Capabilities
Convert pressure units instantly between psi, pascal, bar, atmosphere, and more. Includes conversion tables and common presets.
How to Use
Key Features
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Frequently Asked Questions
Q Which is the largest unit of Pressure?
The Atmosphere (atm) is the largest unit of pressure among common ones. It is 1.01 times of bar and roughly 100,000 times of Pascal.
Q Which is bigger Bar or KiloPascal?
Bar is bigger than Kilopascal. 1 Bar = 100 kPa.
Q Which is the smallest unit of Pressure?
Pascal (Pa) is the smallest unit of pressure. It is equal to the force of 1 newton acting on an area of 1 square meter.
Q What is normal atmospheric pressure?
Normal atmospheric pressure at sea level is defined as 1 atmosphere (atm), which is approx 14.7 psi or 1013.25 mbar.
Q Why do we measure tire pressure in PSI?
Pounds per square inch (PSI) is the standard unit in the imperial system, commonly used in the US and UK for automotive applications.
Q What unit do meteorologists use for weather?
Meteorologists typically use millibars (mb) or hectopascals (hPa) for atmospheric pressure. They are equivalent (1 mb = 1 hPa).