Quick reference table
Common pressure conversions
| From | To |
|---|---|
| 1 psi | 0.06894757293 bar |
| 1 bar | 14.50377377 psi |
| 1 kPa | 0.1450377377 psi |
| 1 psi | 6.894757293 kPa |
| 1 atm | 101,325 Pa |
| 1 mmHg | 0.1333223874 kPa |
| 1 bar | 100 kPa |
| 1 hPa | 0.02952998016 inHg |
How to convert pressure
Pressure is force per area. Tire pressure is given in psi or bar, weather in hectopascals or millibars, blood pressure in mmHg, and engineering in pascals and megapascals.
Every pressure unit is a fixed multiple of one base unit, the Pa. To convert a value, multiply it by the size of the starting unit and divide by the size of the target unit. For example, to convert psi to bar, multiply by 0.06894757293. To go the other way, divide by 0.06894757293.
The converter above does this for you and shows the exact formula under the result.
Worked examples
Pounds per square inch to Bar
| Pounds per square inch (psi) | Bar (bar) |
|---|---|
| 1 psi | 0.06894757293 bar |
| 2 psi | 0.1378951459 bar |
| 5 psi | 0.3447378647 bar |
| 10 psi | 0.6894757293 bar |
| 25 psi | 1.723689323 bar |
| 50 psi | 3.447378647 bar |
| 100 psi | 6.894757293 bar |
| 1,000 psi | 68.94757293 bar |
Bar to Pounds per square inch
| Bar (bar) | Pounds per square inch (psi) |
|---|---|
| 1 bar | 14.50377377 psi |
| 2 bar | 29.00754755 psi |
| 5 bar | 72.51886887 psi |
| 10 bar | 145.0377377 psi |
| 25 bar | 362.5943443 psi |
| 50 bar | 725.1886887 psi |
| 100 bar | 1,450.377377 psi |
| 1,000 bar | 14,503.77377 psi |
Pressure units explained
| Unit | Symbol | Equals |
|---|---|---|
| Pascals | Pa | 1 Pa = 1 Pa |
| Hectopascals | hPa | 1 hPa = 100 Pa |
| Kilopascals | kPa | 1 kPa = 1,000 Pa |
| Megapascals | MPa | 1 MPa = 1,000,000 Pa |
| Bar | bar | 1 bar = 100,000 Pa |
| Millibar | mbar | 1 mbar = 100 Pa |
| Standard atmospheres | atm | 1 atm = 101,325 Pa |
| Pounds per square inch | psi | 1 psi = 6,894.75729317 Pa |
| Kilopounds per square inch | ksi | 1 ksi = 6,894,757.29317 Pa |
| Torr | Torr | 1 Torr = 133.322368421 Pa |
| Millimeters of mercury | mmHg | 1 mmHg = 133.322387415 Pa |
| Inches of mercury | inHg | 1 inHg = 3,386.389 Pa |
| Kilograms-force per cm² | kgf/cm² | 1 kgf/cm² = 98,066.5 Pa |
Popular conversions: psi to bar, bar to psi, kpa to psi, mmhg to kpa.
Frequently asked questions
How many psi is 1 bar?
One bar is about 14.504 psi. A typical car tire at 2.2 bar is about 32 psi.
What is standard atmospheric pressure?
One standard atmosphere is 101,325 pascals, which is about 1.013 bar, 14.696 psi or 760 mmHg.
How do I convert psi to bar?
Multiply the value in psi by 0.06894757293 to get bar. For example, 10 psi = 0.6894757293 bar.
How many bar is 1 psi?
1 psi = 0.06894757293 bar, and 1 bar = 14.50377377 psi.
Does this pressure converter work offline?
Yes. After the page has loaded once, all calculations run in your browser, so it keeps working without an internet connection.