Pressure Converter
Convert a pressure number between pascals, kilopascals, bar, PSI, standard atmospheres, and torr. This page does not add or subtract atmospheric pressure, and it is not a weather station.
Rated 4.7 out of 5 based on 387 reviews
How to convert PSI to kilopascals
- Type the pressure. The default is 1 PSI.
- Leave From on PSI and To on Kilopascals, or switch to pascals, bar, standard atmospheres, or torr.
- Read the kilopascal result and the table of every pressure unit in this list.
- Swap units if you started from kPa, bar, or atm. The value never leaves this browser.
Pascal
SI pressure (N/m²)
| Pascal | 1 Pa = 1 N/m² |
|---|---|
| Kilopascal | 1 kPa = 1000 Pa |
| Bar | 1 bar = 100,000 Pa |
| Standard atmosphere | 1 atm = 101,325 Pa |
| Torr | 1 torr = 101325/760 Pa |
| PSI | 1 psi = 6894.757293168 Pa |
What this pressure converter does
Pressure is force per area. The SI unit is the pascal: 1 Pa = 1 N/m². This form converts among pascals, kilopascals, bar, pound-force per square inch, the standard atmosphere (101325 Pa), and torr (1/760 of that atmosphere). One bar is exactly 100000 Pa, a round metric multiple that is close to, but not equal to, 1 atm.
The same engine also converts energy and power on their own pages: energy and power. Open the unit converter if you need a different dimension.
Pressure factors
Values move into pascals, then out again. 1 kPa = 1000 Pa. 1 bar = 1e5 Pa. 1 atm = 101325 Pa by definition of the standard atmosphere. 1 torr = 101325/760 Pa, the conventional millimeter of mercury on this scale. PSI uses 6894.757293168 Pa per pound-force per square inch. The page treats the number you type as the same kind of pressure on both sides. It does not add 101325 Pa to turn gauge into absolute.
Gauge, absolute, and nearby units
Tire stickers and many gauges read gauge pressure (above local air). Absolute pressure includes the atmosphere. This converter does not know your altitude or the local millibar field, so it will not apply that offset. Torr and mmHg are close in the lab; this list uses torr as 101325/760 Pa. Bar is common on hydraulic spec sheets. kPa is common on vehicle placards outside the United States.
When to convert pressure here
Convert a tire rating from PSI to kPa, a cylinder rating from bar to PSI, or a vacuum figure from torr to pascals. Keep meteorology, altimeters, and live station data off this page.
What this page does not do
It is not a weather station and it does not fetch a QNH or METAR. It does not convert vacuum as a negative gauge without you typing that signed number yourself. It does not convert energy or power. Input stays in this tab.