Pressure Converter
Convert pascals, kilopascals, megapascals, bar, atmospheres, psi, mmHg, inHg and torr.
· CalcFlow Editorial
1 psi = 0.068947573 bar
Results shown are estimates for informational purposes only. Nothing on CalcFlow is financial, tax, legal, or medical advice. Always consult a qualified professional before making important decisions.
Common Pressure Conversions
| Pounds per square inch | Bar | Pascals | Kilopascals | Megapascals | Atmospheres (standard) |
|---|---|---|---|---|---|
| 1 psi | 0.068947573 | 6,894.7573 | 6.8947573 | 0.0068947573 | 0.068045964 |
| 5 psi | 0.34473786 | 34,473.786 | 34.473786 | 0.034473786 | 0.34022982 |
| 10 psi | 0.68947573 | 68,947.573 | 68.947573 | 0.068947573 | 0.68045964 |
| 14.7 psi | 1.0135293 | 101,352.93 | 101.35293 | 0.10135293 | 1.0002757 |
| 30 psi | 2.0684272 | 206,842.72 | 206.84272 | 0.20684272 | 2.0413789 |
| 32 psi | 2.2063223 | 220,632.23 | 220.63223 | 0.22063223 | 2.1774708 |
| 100 psi | 6.8947573 | 689,475.73 | 689.47573 | 0.68947573 | 6.8045964 |
| 1,000 psi | 68.947573 | 6,894,757.3 | 6,894.7573 | 6.8947573 | 68.045964 |
| 5,000 psi | 344.73786 | 34,473,786 | 34,473.786 | 34.473786 | 340.22982 |
Popular Pressure Conversions
Formula
pascals = value x unit factor (1 atm = 101,325 Pa, 1 bar = 100,000 Pa, 1 psi = 6,894.757293168 Pa, 1 mmHg = 133.322387415 Pa)Understanding Pressure Conversion
Pressure is force per area. The SI unit is the pascal, which is tiny, so kilopascals and bar are more common. Tire gauges in the US read pounds per square inch (psi) while much of the world uses bar or kPa. Weather reports use hectopascals or inches of mercury, and blood pressure is measured in millimeters of mercury. Standard atmospheric pressure is exactly 101,325 pascals.
Tips and Best Practices
- 1One bar is about 14.504 psi and 100 kPa.
- 2Standard atmosphere is 14.696 psi, 1.01325 bar or 760 mmHg.
- 3Check whether a gauge reads absolute pressure or gauge pressure (relative to the air around you).
Real-World Example
A tire at 32 psi is 32 x 0.0689476 = 2.206 bar, which is 220.6 kPa. A blood pressure of 120 mmHg is 16.0 kPa.
Common Mistakes to Avoid
- Confusing gauge and absolute pressure, which differ by about 14.7 psi at sea level.
- Mixing kPa and MPa, a factor of 1,000.
- Treating torr and mmHg as different; they agree to within a few parts per billion for practical use.
How to Use
- Pick the unit you have in the left selector and the unit you want in the right selector.
- Type a number in either box; the other box updates instantly.
- Use the swap button to reverse the direction and Copy result to copy the answer.
Frequently Asked Questions
How many psi is 1 bar?
How many kPa is 1 atm?
What is 32 psi in bar?
Sources: NIST SP 811 (standard atmosphere, psi from lbf and in, conventional mmHg 13,595.1 kg/m3 x g_n); BIPM SI Brochure (bar).