Convert pressure units — Pascal, bar, PSI, atm, Torr, mmHg.
| Unit | Name | Value |
|---|---|---|
| kPa | Kilopascal | 0.001 |
| bar | Bar | 0.00001 |
| atm | Atmosphere | 0.0000098692327 |
| psi | PSI | 0.00014503768 |
| Torr | Torr / mmHg | 0.0075006376 |
| inHg | Inch of Mercury | 0.00029529971 |
Formula: Kilopascal = Pascal × 0.001
Multiply any pascal value by 0.001 to get kilopascal.
Reverse: Pascal = Kilopascal × 1000
Common pascal values — factor: 1 Pa = 0.001 kPa
| Pascal (Pa) | Kilopascal (kPa) | Context |
|---|---|---|
| 1 Pa | 0.001 kPa | 1 Pa — light breeze |
| 100 Pa | 0.1 kPa | 1 mbar |
| 1,000 Pa | 1 kPa | 10 mbar |
| 1e+04 Pa | 10 kPa | 0.1 atm |
| 101,300 Pa | 101.3 kPa | 1 atm / sea level |
| 200,000 Pa | 200 kPa | 2 bar |
| 500,000 Pa | 500 kPa | 10 bar |
| 1,000,000 Pa | 1,000 kPa | 10 bar |
| 10,000,000 Pa | 1e+04 kPa | 100 bar |
| 100,000,000 Pa | 100,000 kPa | 1,000 bar |
| 6,895 Pa | 6.895 kPa | 1 psi |
| 133.3 Pa | 0.1333 kPa | 1 mbar |
| 3,386 Pa | 3.386 kPa | 1 psi |
| 9.807e+04 Pa | 98.07 kPa | 1 atm / sea level |
| 1.000e+09 Pa | 1,000,000 kPa | 10,000 bar |
Pa ÷ 1,000 = kPa. Move decimal 3 places left.
Exact — kilo means thousand.
kPa × 1,000 = Pa.
Measures sound pressure levels in pascals — 20 μPa is the threshold of hearing.
Measures wind load on structures and façade pressure in pascals.
Specifies air pressure differentials across filters and dampers in Pa.
Calibrates pressure instruments traceable to SI pascal standards.
Solves Navier-Stokes equations with pressure in pascals.
Controls process chamber pressure in mPa range for deposition processes.
The pascal (Pa) is the SI derived unit of pressure, defined as one newton per square meter. It was named after Blaise Pascal, the 17th-century French mathematician and physicist who studied fluid pressure. The unit was officially adopted by the International System of Units in 1971.
Pascals are used in meteorology (atmospheric pressure ~101,325 Pa), materials science (Young's modulus in GPa), and fluid mechanics. The pascal is very small — standard atmospheric pressure equals 101,325 Pa.
Interesting fact: Blaise Pascal demonstrated in 1648 that atmospheric pressure decreases with altitude by carrying a barometer up the Puy de Dôme mountain, confirming Torricelli's theory of atmospheric pressure.
The kilopascal (kPa) equals 1,000 pascals and is the practical everyday pressure unit in metric countries. It is the standard unit for tire pressure, blood pressure, and weather maps in countries using SI.
Blood pressure in many countries is expressed in kPa (normal: ~16/10.7 kPa), though mmHg remains dominant in medicine. Car tire pressure is typically 200–250 kPa. Weather maps use hPa (= mbar) for atmospheric pressure.
Interesting fact: The 'bends' (decompression sickness) in scuba diving occurs when dissolved nitrogen forms bubbles as pressure drops — a drop of just a few kPa too quickly can be fatal.
Converting pascal to kilopascal is a common task in engineering, medicine, meteorology, and science. Different industries and countries use different pressure units — PSI in the US, bar in Europe, mmHg in medicine, and pascals in physics — making accurate conversion essential for cross-disciplinary work.
Quick reference: 5 Pa = 0.005 kPa and 10 Pa = 0.01 kPa. For the reverse: 1 kPa = 1000 Pa. The exact factor is 1 Pa = 0.001 kPa.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.